Next generation artificial intelligence (AI): explainable AI
UK research funding call. International participation depends on the specific scheme. · UKRI — artificial intelligence
NPerseus
Computer Science & Engineering · DTU
Neural Security · Privacy · Digital Forensics
Secure intelligence.
Verifiable by design.
Inspired by Neural intelligence and Perseus, the legendary Greek hero, NPerseus represents our pursuit of resilient, trustworthy, and secure intelligent systems.
We are a research group in the Department of Computer Science & Engineering at Delhi Technological University working at the intersection of neural network security and privacy, digital and multimedia forensics, secure communication, and copyright protection. Our research develops robust learning systems, privacy-preserving methods, forensic techniques, and secure information technologies for trustworthy digital environments.
Deepfake DetectionDigital ForensicsDeep ClusteringAdversarial MLReversible Data HidingImage SteganographyAI Privacy & SecurityTrustworthy AIBackdoor Defense
Opportunities
Browse all01 / 03
Lab News
All lab news ↗Nikhil Gupta receives Best Paper Award at ICSCCC 2026 →
Beyond the lab
Browse opportunities →Opportunities
Calls for proposals, funding, fellowships, conferences and workshops.
The lab at a glance
Explore the research network ↗129Reviewed publications56 journal · 62 conference
39Patent records21 granted · 18 published
15Active people3 faculty · 12 researchers
6Ph.D. scholarsAcross the research team
4Research directionsSecurity, privacy & forensics
5AlumniPart of the lab network
23 listed works in 2026 · Publications are deduplicated across faculty and members. Patent statuses follow source records. Browse publications →
Faculty
Meet the team →Faculty at DTU
Computer Science & Engineering, Delhi Technological University.
Dr. Rajeev Kumar
Assistant Professor
Leads the lab's work on security and privacy of deep neural networks, data hiding and multimedia forensics. Ph.D. (University of Delhi, 2017) with a post-doctorate at Kyungil University, South Korea and an NRF Korea Brain Pool Plus Fellowship.
Dr. Anurag Goel
Assistant Professor
Works on machine learning, deep learning and deep clustering, graph algorithms, image processing, AI for social good and computational creativity. He earned his Ph.D. in CSE from IIIT-Delhi in 2023 with a thesis on Deep Clustering and received IIIT-Delhi’s M.Tech. Gold Medal in 2017.
Ms. Anukriti Kaushal
Assistant Professor
Researches manipulated-image detection, deepfake generation and detection, and digital image integrity. M.Tech. in Software Engineering (DTU) and a Ph.D. in progress at DTU on intelligent image-forensics strategies.
Research areas
Projects & research →What we study
Security of Neural Networks
How do we identify compromised models and training samples?
Selected research
ShortcutProbe: Identifying Backdoor Samples Via Internal Stability Analysis ↗
Mahaveer Prasad, Ajit Kumar Yadav, Rajeev Kumar, Victor Fedoseev
Conference paper · 2026
Data Hiding & Watermarking
How can hidden information be recovered without losing the original image?
Selected research
Index-Modulated High-Capacity Reversible Data Hiding in Encrypted Images ↗
Ajit Kumar Yadav, Rajeev Kumar
Conference paper · 2026
Multimedia Forensics
How can we detect manipulated images and trace their processing history?
Selected research
MRVNet: A 3D Residual Fusion Network for Robust Image Forgery Detection ↗
Anukriti Kaushal, Ananay Gupta
Conference paper · 2025
Trustworthy & Private AI
How can model behaviour be explained and evaluated responsibly?
Selected research
Unveiling Pure Spectra: A Comprehensive Review of Hyperspectral Image Denoising from the Perspective of Explainable AI ↗
Shray Gupta, Anurag Goel
Conference paper · 2026
Funded projects
All faculty projects →Funded work
AI-Assisted Multimodal Framework for Earthquake Vulnerability Assessment of Structures →
Dr. Anurag Goel · Co-PI, National Institute of Disaster Management, ₹7.986 lakh (Ongoing; PI: Shilpa Pal)
Funded workAn App for Transforming Raw EMRs into Actionable Summaries →
Dr. Rajeev Kumar · co-investigator with Garima Chhikara; project lead Anurag Goel; DTU CCDR / Koshika Foundation; ₹5.6 lakh; listed ongoing by DTU (checked 5 September 2026).
Funded workAn App for Transforming Raw EMRs into Actionable Summaries →
Dr. Anurag Goel · PI, DTU CCDR/Koshika Foundation, ₹5.6 lakh (Ongoing; co-PIs: Rajeev Kumar and Garima Chhikara)
Funded workDevelopment of AI-Based Solution for Analysing, Benchmarking and Quality Monitoring of Cybersecurity Audit Reports and Performance Monitoring of Auditing Organisations →
Dr. Anurag Goel · Co-PI, MeitY, ₹3 crore (Ongoing; PI: Pawan Singh Mehra)
Research output
All 129 records →Recent publications
Papers and preprints from the group, newest first.
Research focus · security × data hiding
Reversible adversarial perturbations
Studying perturbations that can be removed to recover the original image, connecting adversarial robustness with reversible data hiding.
A Survey on Reversible Adversarial Perturbations
Nikhil Gupta, Ankur, Rajeev Kumar · 2026
Conference paper
Read the survey ↗Journal article2026
3D hybrid convolutional autoencoder for hyperspectral image denoising
Shray Gupta & Anurag Goel
Signal, Image and Video Processing, vol. 20(3), article 124
Book chapter2026
A Deep Learning-Based Multimodal Cyberbullying Detection Framework Using DistilBERT ResNet50 and Cross-Modal Attention
Anurag Pandey, Jeba Nega Cheltha, Sonal Gandhi
Sustainable Developments in Computer Engineering, Green Technology and Smart Systems, pp. 444–449
Journal article2026
A Dive into Generative Adversarial Networks in the World of Hyperspectral Imaging: A Survey of the State of the Art
Pallavi Ranjan, Ankur Nandal, Saurabh Agarwal, Rajeev Kumar
Remote Sensing, vol. 18(2), article 196
Journal article2026
A Residual Pyramid-GAN Approach for Hyperspectral Image Classification
Pallavi Ranjan, Ankur, Rajeev Kumar
Annals of Data Science
Conference paper2026
A Unified Multi-Signal Indicator Framework for Backdoor Detection and Label Correction in Deep Neural Networks
Mahaveer Prasad, Vinod Kumar
2026 Fourth International Conference on Secure Cyber Computing and Communications (ICSCCC), pp. 368–373
Conference paper2026
Adaptive Weighted Predictor for Checkerboard based Reversible Data Hiding in Encrypted Images
Ajit Kumar Yadav, Rajeev Kumar
2026 Fourth International Conference on Secure Cyber Computing and Communications (ICSCCC), pp. 338–343
The people
Full team →Research students
6 of 12 researchersExplore at your pace
Ayush Kumar
B.Tech Student
Android Security, Vulnerability Research and Secure Systems
Platform engineering
Built and maintains the NPerseus website and research tools.
Ajit Kumar Yadav
Full-time Ph.D. Candidate
Reversible Data Hiding in Encrypted Images, Image Security, Backdoor Detection in Neural Networks
Latest listed publication
Adaptive Weighted Predictor for Checkerboard based Reversible Data Hiding in Encrypted Images
Ganesh Immanni
Ph.D. Scholar
Neural Network Watermarking, Model Theft and Backdoor Defense
Latest listed publication
Watermarking in Deep Neural Network: A Comprehensive Survey
Ishan Panwar
M.Tech Student
AI Backdoor Defense
Latest listed publication
Detecting Backdoored Models using Gradient Entropy Analysis of Adversarial Inputs
Mahaveer Prasad
M.Tech Student
Adversarial Machine Learning, Backdoor and Data-Poisoning Defense, Network Intrusion Detection, Android Malware Analysis
Latest listed publication
A Unified Multi-Signal Indicator Framework for Backdoor Detection and Label Correction in Deep Neural Networks
Nikhil Gupta
Full-time Ph.D. Candidate
Enabling Technologies for Trustworthy Artificial Intelligence, Adversarial Machine Learning, AI Security and Robustness
Latest listed publication
A Survey on Reversible Adversarial Perturbations
From the lab
All news & activity →News & achievements
Patent · Granted
A System and Method for Prioritized Data Delivery
IN 600475 · Ajit Kumar Yadav, Rajeev Kumar
Patent · Granted
System and Method to Engage a Player in a Game Simulation
IN 599946 · Ayush Kumar, Rajeev Kumar
Patent · Granted
System and Method for Adaptive Video Resolution Switching
IN 591412 · Rajeev Kumar · Inventor evidence: Names as listed by linked source
Patent · Granted
Method and System for Detecting Virtual Private Network (VPN) Usage in a Communication Network
IN 590173 · Rajeev Kumar, Aruna Malik, Vikas Tyagi, Dr. Neeraj, Dr. Vijay, Samayveer Singh, Nikhil Gupta
Patent · Granted
System and Method for Securely Charging Electric Vehicle
IN 588448 · Ajit Kumar Yadav, Ayush Kumar, Dheeraj Joshi, Rajeev Kumar
Patent · Published
Method and System for Identification and Correction of Poisoned Training Samples in Deep Neural Network
Application 202611018498 · Mahaveer Prasad, Vinod Kumar, Altaf Hussain, Rajeev Kumar
Patent · Granted
Adaptive Audio Output System and Method Thereof
IN 584506 · Anurag Goel, Anukriti Kaushal, Meenakshi Diwan, Pallavi Ranjan, Rajeev Kumar
Patent · Granted
Method and System for Context-Aware Dynamic Access Control of Interactive Interfaces in User Devices
IN 582601 · Rajeev Kumar, Ankur, Franklin John, Shailender Kumar, Ananthan R, Ayush Kumar, Naveen Dahiya, Yogendra Mohan, Itti
Patent · Granted
System and Method for Quantifying and Predicting the Resilience of Agro-Ecosystems
IN 580179 · Rajeev Kumar, Kripal Singh, Pallavi Ranjan · Inventor evidence: Names as listed by linked source
Patent · Granted
Hearing Aid System and Method for Context-Aware Alarm Detection and Personalized Biometric Feedback
IN 578276 · Anukriti Kaushal, Sonal Gandhi, Anurag Goel, Rajeev Kumar
Award announcement
Nikhil Gupta receives Best Paper Award at ICSCCC 2026
Nikhil Gupta received a Best Paper Award at the Fourth International Conference on Secure Cyber Computing and Communications (ICSCCC 2026). The conference was held at Dr B R Ambedkar National Institute of Technology Jalandhar on May 29–31, 2026. His certificate identifies Paper ID 1124 in Session 4.
Patent · Granted
System for Underwater Object Detection and Method Thereof
IN 575681 · Pallavi Ranjan, Anurag Goel, Rajeev Kumar
Patent · Granted
System and Method for Hiding Data in Images
IN 572628 · Ankur, Rajeev Kumar · Inventor evidence: Names as listed by linked source
Patent · Published
System and Method for Adaptive Notification Delivery Based on Cognitive Load and Contextual Parameters
Application 202511069771 · Shray Gupta, Anurag Goel, Rajeev Kumar
Patent · Granted
Method and System for Generating Dynamic Alert in a Messaging Platform
IN 568874 · Pallavi Ranjan, Ankur, Navdeep Bohra, Neeti Sangwan, Saurabh Agarwal, Anurag Goel, Shailender Kumar, Rajeev Kumar
Patent · Published
A Real-Time Adaptive Trust Routing for Underwater Software-Defined Networks System
Application 202511061850 · Surjit Singh, Aman Verma, Ishan Panwar, Praval Kaushal, Devansh Gupta, Prayag Chawla
Patent · Published
Federated Learning-Enabled Device for Dynamically Providing Personalized Content to a User
Application 202511058221 · Rajeev Kumar, Shailender Kumar, Abha Devi · Status source: Application publication in the Indian Patent Office journal · Inventor evidence: Inventors listed in the original Patent Office application publication · Application publication and full inventor list are confirmed by the linked Patent Office journal. Published is a publication milestone, not a claim of current legal pendency or enforceability.
Patent · Granted
Method and System for Enhancing Handwritten Content on a Smart Board
IN 567890 · Rajeev Kumar, Anurag Goel, Shailender Kumar, Pallavi Ranjan, Jai Chhillar, Yogendra Mohan, Ajit Kumar Singh Yadav, Abha Devi
Patent · Published
System and Method for Updating Group Profile Image based on Topic and Argument Engagement Analysis
Application 202511046026 · Rajeev Kumar, Pallavi Ranjan · Status source: Application publication in the Indian Patent Office journal · Inventor evidence: Inventors listed in the original Patent Office application publication · Application publication and full inventor list are confirmed by the linked Patent Office journal. Published is a publication milestone, not a claim of current legal pendency or enforceability.
Patent · Granted
Method and System for Automatic Transmission of Authentication Code
IN 564225 · Rajeev Kumar, Anurag Goel, Shailender Kumar, Pankaj Lathar, Ankur, Pallavi Ranjan, Pradeep Kamboj
Faculty recognition
Commendable Research Excellence Award, DTU (2025)
Dr. Anurag Goel
Faculty recognition
Early Research Impact Award, DTU (2025)
Dr. Rajeev Kumar
Award announcement
Rajeev Kumar received DTU Premier Research Excellence Award
Delhi Technological University recognised Rajeev Kumar with its Premier Research Excellence Award in 2025.
Patent · Published
A System for Adaptive Selection of High-Resolution Communication and Super-Resolution Communication
Application 202311024708 · Aruna Malik, Samayveer Singh, Mohit Kumar, Rajeev Kumar · Inventor evidence: Names as listed by linked source
Patent · Published
A System and Method for Intelligently Charging Built-in Wireless Earphones
Application 202311024642 · Samayveer Singh, Aruna Malik, Rajeev Kumar · Status source: Application publication in the Indian Patent Office journal · Inventor evidence: Inventors listed in the original Patent Office application publication · Application publication and full inventor list are confirmed by the linked Patent Office journal. Published is a publication milestone, not a claim of current legal pendency or enforceability.
Patent · Published
Method and System for Automatically Determining Reward or Penalty Points to Calculate Insurance Premium
Application 202411000844 · Rajeev Kumar, Amit Dua, Aruna Malik, Vikas Tyagi, Samayveer Singh, Vijay Kumar, Neeraj Kumar, Abha Devi · Status source: Application publication in the Indian Patent Office journal · Inventor evidence: Inventors listed in the original Patent Office application publication · Application publication and full inventor list are confirmed by the linked Patent Office journal. Published is a publication milestone, not a claim of current legal pendency or enforceability.
Faculty recognition
Best Paper Award, ICSTSN 2024 — Unveiling Anomalies: A Review of Anomaly Detection Through Lens of Explainable AI
Dr. Anurag Goel
Faculty recognition
Innovation Research Excellence Award, DTU (2024)
Dr. Rajeev Kumar
Patent · Granted
Method and System for Filtering Out Recipients for Broadcast Messages Based on Their Emotional State and Message Contents
IN 444018 · Rajeev Kumar, Shailender Kumar, Abha Devi · Inventor evidence: Names as listed by linked source
Faculty recognition
Best Paper Award, ICSTSN 2023 — Blood Cell Classification using Neural Network Models
Dr. Anurag Goel
Faculty recognition
Commendable Research Excellence Award, DTU (2023)
Dr. Anurag Goel
Faculty recognition
Brain Pool Plus Fellowship, National Research Foundation of Korea (awarded 2021 for three years)
Dr. Rajeev Kumar
Faculty recognition
Brain Pool Fellowship, Korean Research Foundation (awarded 2018 for one year)
Dr. Rajeev Kumar
Faculty recognition
Gold Medal for Excellent Academic Performance, M.Tech., IIIT-Delhi (2017)
Dr. Anurag Goel
Faculty recognition
Academic Excellence Award, IIIT-Delhi (2016)
Dr. Anurag Goel
Faculty recognition
On-the-Spot Award, TCS (2014)
Dr. Anurag Goel
Faculty recognition
Academic Excellence Award, SRM University - NCR Campus (2011)
Dr. Anurag Goel
Faculty recognition
GATE 2007, All India Rank 272
Dr. Rajeev Kumar
Patent · PublishedUndated record
A System and Method for Delivery of Products in Climate-Controlled Environment
Application 202511090578 · Status source: Listed as Published in the DTU faculty profile · Inventor evidence: Inventor list not established from the reviewed sources · Status and application identity are reported in the linked DTU faculty profile. Full inventor list has not been independently established. Publication date is not established.
Patent · PublishedUndated record
A System and Method for Providing Personalized Guidance during Image Capturing
Application 202311076162 · Status source: Listed as Published in the DTU faculty profile · Inventor evidence: Inventor list not established from the reviewed sources · Status and application identity are reported in the linked DTU faculty profile. Full inventor list has not been independently established. Publication date is not established.
Patent · GrantedUndated record
AI-Driven Configuration Clustering and Blockchain Privacy System
IN 595248 · Rajeev Kumar, Vinod Kumar, Shailender Kumar, Sonal Gandhi, Pallavi Ranjan, Ankur, Neeti Sangwan, Navdeep Bohra, Rahul Kumar · Status source: Grant notice in the Indian Patent Office journal · Inventor evidence: Inventors listed in the original Patent Office application publication · Grant number and grant milestone are confirmed by the Patent Office grant notice published 17 July 2026; that issue date is not the exact grant date. Inventors and filing/publication dates follow the original application publication.
Faculty recognitionUndated record
Commendable Research Excellence Award, DTU (2022, 2023, 2024 and 2025)
Dr. Rajeev Kumar
Patent · GrantedUndated record
Intelligently Hiding Personal Application User Interface (UI) Elements
IN 557182 · Lalit K Awasthi, Rajeev Kumar, Samayveer Singh, Aruna Malik, Saurabh Agarwal, Tushar Bhardwaj, Abha Devi · Status source: Listed as Granted in the DTU faculty profile · Inventor evidence: Inventors listed in the institutional report · Status and application identity are reported in the linked DTU faculty profile. Inventors follow the linked institutional annual report; original government list has not been checked. Exact grant date is not established.
Patent · PublishedUndated record
Method and System for Adaptive Multi-Layer Detection of Money Mule Activity in Banking Cyber-Physical System
Application 202511117732 · Status source: Listed as Published in the DTU faculty profile · Inventor evidence: Inventor list not established from the reviewed sources · Status and application identity are reported in the linked DTU faculty profile. Full inventor list has not been independently established. Publication date is not established.
Patent · PublishedUndated record
Method and System for Generating an Arrangement of a Set of Contacts
Application 202413071695 · Status source: Listed as Published in the DTU faculty profile · Inventor evidence: Inventor list not established from the reviewed sources · Status and application identity are reported in the linked DTU faculty profile. Full inventor list has not been independently established. Publication date is not established.
Patent · GrantedUndated record
Method for hiding private information
IN 440087 · Samayveer Singh · Status source: Listed as Granted in the DTU faculty profile · Inventor evidence: NIT Jalandhar R&D Newsletter, December 2019, page20 row42 names Samayveer Singh. Full inventor list not yet verified. · Status and application identity are reported in the linked DTU faculty profile. Full inventor list has not been independently established. Exact grant date is not established.
Patent · PublishedUndated record
Multi-Signal Geo-Confidence and Temporal Biometric Attendance Authentication
Application 202611078107 · Status source: Listed as Published in the DTU faculty profile · Inventor evidence: Inventor list not established from the reviewed sources · Status and application identity are reported in the linked DTU faculty profile. Full inventor list has not been independently established. Publication date is not established.
Faculty recognitionUndated record
Patent-o-thon 2025 Grand Finale — awardee; KIT’s Innovation & Research Foundation, Kolhapur.
Dr. Rajeev Kumar
Patent · PublishedUndated record
Privacy-Preserving Face Representation System and Method
Application 202611006539 · Status source: Listed as Published in the DTU faculty profile · Inventor evidence: Inventor list not established from the reviewed sources · Status and application identity are reported in the linked DTU faculty profile. Full inventor list has not been independently established. Publication date is not established.
Patent · GrantedUndated record
System and Method for Adaptation of Video or Playlist Thumbnails based on User Preferences
IN 576746 · Rajeev Kumar, Shailender Kumar, Vinod Kumar, Pankaj Lathar, Anil Sangwan, Saurabh Agarwal, Ankur, Abha Devi · Status source: Listed as Granted in the DTU faculty profile · Inventor evidence: Inventors listed in the original Patent Office application publication · Status and application identity are reported in the linked DTU faculty profile. Inventors are listed in the original Patent Office application publication. Exact grant date is not established.
Patent · GrantedUndated record
System and Method for Adaptive Multi-Factor Biometric Authentication with Dynamic Obfuscation
IN 595454 · Rajeev Kumar, Sanjay Kumar, Saurabh Agarwal, Tushar Bhardwaj · Status source: Grant notice in the Indian Patent Office journal · Inventor evidence: Inventors listed in the original Patent Office application publication · Grant number and grant milestone are confirmed by the Patent Office grant notice published 17 July 2026; that issue date is not the exact grant date. Inventors and filing/publication dates follow the original application publication.
Patent · PublishedUndated record
System and Method for Backdoor Detection in Neural Networks using Path Diversity Decay Measurement
Application 202611028303 · Status source: Listed as Published in the DTU faculty profile · Inventor evidence: Inventor list not established from the reviewed sources · Status and application identity are reported in the linked DTU faculty profile. Full inventor list has not been independently established. Publication date is not established.
Patent · PublishedUndated record
System and Method for Explainable-AI Guided Semantic Watermarking of Deep Neural Networks
Application 202611083599 · Status source: Listed as Published in the DTU faculty profile · Inventor evidence: Inventor list not established from the reviewed sources · Status and application identity are reported in the linked DTU faculty profile. Full inventor list has not been independently established. Publication date is not established.
Patent · GrantedUndated record
System and Method for Personalized Guidance for Image Capturing
IN 574725 · Aruna Malik, Samayveer Singh, Rajeev Kumar · Status source: Listed as Granted in the DTU faculty profile · Inventor evidence: Inventors listed in the original Patent Office application publication · Status and application identity are reported in the linked DTU faculty profile. Inventors are listed in the original Patent Office application publication. Exact grant date is not established.
Patent · PublishedUndated record
System and Method for Secure Offline Face Verification
Application 202611045658 · Status source: Listed as Published in the DTU faculty profile · Inventor evidence: Inventor list not established from the reviewed sources · Status and application identity are reported in the linked DTU faculty profile. Full inventor list has not been independently established. Publication date is not established.
Patent · PublishedUndated record
System for Detecting and Mitigating Poisoning Attacks in an Artificial Intelligence Model
Application 202611000383 · Status source: Listed as Published in the DTU faculty profile · Inventor evidence: Inventor list not established from the reviewed sources · Status and application identity are reported in the linked DTU faculty profile. Full inventor list has not been independently established. Publication date is not established.
Faculty recognitionUndated record
Teaching Assistant Excellence Award, IIIT-Delhi
Dr. Anurag Goel
Research connections
External contributors & alumni →Current affiliations Choose an institution to see its researchers and reviewed work.
Work with NPerseus
Work with the lab.
Discuss a research project, share a problem from your field, or ask about joining NPerseus.