Research

My main areas of interest are general relativity, field theory and black holes. Over the past few years my research has been directed towards following topics:

  • Asymptotic Symmetries and Soft Theorems
  • Gravitational Memory Effect
  • Quasi normal modes of black holes
  • Black hole thermodynamics
  • Classical & quantum instabilities inside the black holes
  • Non linear dynamics and infectious disease modelling.

A very useful resource for gravitational physics: here

Research projects

  • "A study of black hole horizons with (semi) analytic approaches", MATRICS; SERB-DST 2023-2026
  • "Near horizon structure of black holes," SERB-DST ECR award, 2018-2022 (completed)
  • "Probing the interior of AdS Black Holes," Seed grant from IIIT Allahabad

    • List of publications

    My complete list of publications can be found here and publications in hep-th/gr-qc can be found here



    Research Group

    Present members

    Divyesh N. Solanki
    Divyesh N. Solanki
    Ph.D. Scholar
    Research
    Scattering amplitudes, asymptotic Symmetries and conserved charges, soft theorems in de Sitter space.

  • Om Harinarayan Kushawaha (2026-)
  • Area: Mathematical Relativity

  • Syed Abdullah Tariq (2026-)
  • Area: Physics-informed Machine Learning

    • Supervising Shalini Harkar (working professional) jointly with Prof. Pritish Kumar Varadwaj, IIIT Allahabad.


    Past members

    Dr. Shailesh Kumar
    Dr. Shailesh Kumar (2018-2022)
    Postdoctoral Researcher, IIT Gandhinagar
    Thesis Title
    Gravitational Memory Effect for Near Horizon Asymptotic Symmetries
    Research
    Observational signatures of asymptotic symmetries, Gravitational Memory, Extreme mass-ratio inspirals.
    Dr. Subhodeep Sarkar
    Dr. Subhodeep Sarkar (2019-2023)
    Postdoctoral Researcher, IIT Madras
    Thesis Title
    A Descent into the Maelström: Probing the Near-Horizon Structure of Black Holes Using Perturbative Techniques
    Research
    Black hole perturbation theory, quasinormal modes, numerical relativity.
    Ayon Tarafdar
    (2020-2024)
    pursuing PhD in Memorial University of Newfoundland
    VRITIKA Intern & Collaborator
    Research
    Numerical Relativity


    Masters Thesis/Project

    Sanchari Biswas
    Research scholar at ISM-IIT, Dhanbad
    M.Sc. Dissertation
    A Study on Black Hole Shadows
    Yuvasri G
    Research scholar at IIA, Bangalore
    M. Sc. Dissertation
    A Study on Black Hole Shadows
    Ashley Chraya
    MS Physics, IISER Mohali
    VRITIKA Internship
    A study on black hole quasinormal modes


    M. Tech. Thesis Supervision

  • Supervised: "Population models with varying carrying capacity", Vipin Tirkey; Stochastic resonance (Arvind Saroj), Noise induced transition (Raviranjan Kumar), Modelling Tumor growth (Sujeet Kumar), Modeling Epilepsy and Alzheimer (Shruti Gupta), Ananya Mishra (Heart disease), Ayush Shukla (optimization), Vansharaj Singh(parametric resonance), Vikash Kumar(NLD),Anand Khandelwal(NN architecture) Jay Vyas (ML methods in predicting fluid dynamics), Mayank Maravaniya, Kayuum Yusuf Ali, Kavin Prasath, Himanshu Shekhar Pandey .

    • Summer/Winter and other Projects

  • "Heart as Self Oscillatory System", Vishal Mugetia (IIITA).
  • Summer intern (2018): "Mass inflation instability in black holes", Amit Gupta (Delhi Technological University)
  • Vishal Mugetia (IIIT Allahabad)on Heart as a self-oscillatory system(2017)
  • Vishal Mugetia and Sanjeev Rajpoot (IIIT Allahabad)Noise reduction in electrical systems
  • Priyam Srivastava (IISER Bhopal) on Entanglement Entropy
  • Sanjoy Saha (IIT Gandhinagar) on Lagrangian formulation of General Relativity
  • Payal Roy (Calcutta University) on Raychaudhuri equation
  • Tiyasa Kar (NIT Surat) on Path integral in quantum and stochastic systems
  • Sourin Naskar (NIT Rourkella) on Introduction to Einstein's equation
  • Sanchayan Banerjee (RKMRC NArendrapur) B.Sc. project on motion of test particles in rotating spacetimes
  • Saptarshi Ghosh (RKMRC, Narendrapur) on Linearized gravity and gravitational waves
  • Sanchari Biswas and Yuvasri G (Christ University, Bengaluru); A Study on Black Hole Shadows; M. Sc. Dissertation 2021-2022
  • Sai Srinivash Sandhyala; Parul University, "Entanglement entropy in Inverted and Coupled oscillator system and Connections to the Black hole area law"