PhD Alumni

Susmita Sur-Kolay
Susmita Sur-Kolay

Senior Research Fellow

Unit: ACMU

Division: CCSD

surkolay@gmail.com

Supervisor(s): Prof. Bhargab B. Bhattacharya

Thesis Title: Studies on Nonslicible Floorplans in VLSI Layout Design

Degree Awarded By: ISI

Year of Award: 1992

Current Affiliation: Faculty at Indian Statistical Institute (Retired)

Krishnendu Mukhopadhyaya
Krishnendu Mukhopadhyaya

Senior Research Fellow

Unit: ACMU

Division: CCSD

krishnendu.mukhopadhyaya@gmail.com

Supervisor(s): Prof. Bhabani P. Sinha

Thesis Title: Studies on Design, Routing and Fault-Tolerance of Interconnection Networks

Degree Awarded By: ISI

Year of Award: 1994

Current Affiliation: Faculty at Indian Statistical Institute

Srabani Mukhopadhyaya
Srabani Mukhopadhyaya

Senior Research Fellow

Unit: ACMU

Division: CCSD

srabanim@gmail.com

Supervisor(s): Prof. Bhabani P. Sinha

Thesis Title: New Topologies and Parallel Algorithms for Static Interconnection Networks

Degree Awarded By: ISI

Year of Award: 1997

Current Affiliation: Faculty at Birla Institute of Technology, Mesra

Subhas C. Nandy
Subhas C. Nandy

Senior Research Fellow

Unit: ACMU

Division: CCSD

subhas.c.nandy@gmail.com

Supervisor(s): Prof. Bhargab B. Bhattacharya

Thesis Title: Studies on Some Geometric Algorithms with Applications to VLSI

Degree Awarded By: CU

Year of Award: 1998

Current Affiliation: Faculty at Indian Statistical Institute (Retired)

Sandip Das
Sandip Das

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Bhargab B. Bhattacharya

Thesis Title: Routing Algorithms in Channels, Switchboxes and MCM's in VLSI Layout Design

Degree Awarded By: ISI

Year of Award: 2001

Current Affiliation: Faculty at Indian Statistical Institute

Arijit Bishnu
Arijit Bishnu

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Bhargab B. Bhattacharya

Thesis Title: Combinatorial Techniques for Digital Image Characterization and Retrieval: Algorithms, Architectures, and Applications

Degree Awarded By: ISI

Year of Award: 2003

Current Affiliation: Faculty at Indian Statistical Institute

Sasthi C. Ghosh
Sasthi C. Ghosh

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Bhabani P. Sinha

Thesis Title: Efficient Channel Assignment Techniques in Cellular Mobile Networks

Degree Awarded By: ISI

Year of Award: 2004

Current Affiliation: Faculty at Indian Statistical Institute

Partha S. Mandal
Partha S. Mandal

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Krishnendu Mukhopadhyaya

Thesis Title: Checkpointing and Self-Stabilization for Fault-Tolerance in Distributed Systems

Degree Awarded By: JU

Year of Award: 2006

Current Affiliation: Faculty at Indian Institute of Technology, Guwahati

Gautam K. Das
Gautam K. Das

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Subhas C. Nandy

Thesis Title: Placement and Range Assignment in Power-aware Radio Networks

Degree Awarded By: ISI

Year of Award: 2008

Current Affiliation: Faculty at Indian Institute of Technology, Guwahati

Sasanka Roy
Sasanka Roy

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Sandip Das

Thesis Title: Algorithms for some Geometric Facility Location and Path Planning Problems

Degree Awarded By: ISI

Year of Award: 2008

Current Affiliation: Faculty at Indian Statistical Institute

Partha Bhowmick
Partha Bhowmick

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Bhargab B. Bhattacharya

Thesis Title: Geometric Primitives in Digital Images: Analyses and Applications using Digital Geometry

Degree Awarded By: ISI

Year of Award: 2008

Current Affiliation: Faculty at Indian Institute of Technology, Kharagpur

Pritha Banerjee
Pritha Banerjee

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Susmita Sur-Kolay

Thesis Title: Fast Placement and Floorplanning Methods for Modern Reconfigurable FPGAs

Degree Awarded By: ISI

Year of Award: 2010

Current Affiliation: Faculty at Calcutta University

Amlan Chakrabarti
Amlan Chakrabarti

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Susmita Sur-Kolay

Thesis Title: On Architectural Synthesis of Quantum Computer

Degree Awarded By: CU

Year of Award: 2010

Current Affiliation: Faculty at Calcutta University

Arindam Biswas
Arindam Biswas

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Bhargab B. Bhattacharya

Thesis Title: Geometric Characterization of Digital Objects: Algorithms and Applications to Image Analysis

Degree Awarded By: ISI

Year of Award: 2010

Current Affiliation: Faculty at Bengal Engineering and Science University (BESU)

Subhasis Bhattacharya
Subhasis Bhattacharya

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Nabanita Das

Thesis Title: Distributed Algorithms for Initialization and Topology Control in Wireless Ad Hoc Networks

Degree Awarded By: ISI

Year of Award: 2011

Current Affiliation: Microsoft, India

Arindam Karmakar
Arindam Karmakar

Senior Research Fellow

Unit: ACMU

Division: CCSD

karmarind@gmail.com

Supervisor(s): Prof. Sandip Das

Thesis Title: Location Problem for Covering Demands: Algorithms and Applications

Degree Awarded By: ISI

Year of Award: 2011

Current Affiliation: Faculty at Tezpur University

Debasri Saha
Debasri Saha

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Susmita Sur-Kolay

Thesis Title: VLSI Design, Metaheuristics.

Degree Awarded By: ISI

Year of Award: 2012

Current Affiliation: Faculty at Calcutta University

Buddhadeb Sau
Buddhadeb Sau

Senior Research Fellow

Unit: ACMU

Division: CCSD

buddhadeb.sau@jadavpuruniversity.in

Supervisor(s): Prof. Krishnendu Mukhopadhyaya

Thesis Title: Localization and Target Tracking, Routing and Security in Wireless Sensor Networks

Degree Awarded By: ISI

Year of Award: 2012

Current Affiliation: Faculty at Jadavpur University

Minati De
Minati De

Senior Research Fellow

Unit: ACMU

Division: CCSD

minati.isi@gmail.com

Supervisor(s): Prof. Subhas C. Nandy

Thesis Title: Computational Geometry, Low Memory Algorithms

Degree Awarded By: ISI

Year of Award: 2014

Current Affiliation: Faculty at IIT Delhi

Aritra Banik
Aritra Banik

Senior Research Fellow

Unit: ACMU

Division: CCSD

aritrabanik@gmail.com

Supervisor(s): Prof. Sandip Das

Thesis Title: Computational Geometry, Combinatorial Geometry

Degree Awarded By: ISI

Year of Award: 2014

Current Affiliation: Faculty at NISER Bhubaneswar

Sruti Gan Chaudhuri
Sruti Gan Chaudhuri

Senior Research Fellow

Unit: ACMU

Division: CCSD

srutiganc@it.jusl.ac.in

Supervisor(s): Prof. Krishnendu Mukhopadhyaya

Thesis Title: Distributed algorithms, Geometry, Swarm Robots

Degree Awarded By: JU

Year of Award: 2014

Current Affiliation: Faculty at Jadavpur University

Sahadev Bera
Sahadev Bera

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Bhargab B. Bhattacharya

Thesis Title: Digital Geometry.

Degree Awarded By: ISI

Year of Award: 2015

Ansuman Bhattacharya
Ansuman Bhattacharya

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Bhabani P. Sinha

Thesis Title: Design and Performance Evaluations of Protocols, Architectures, Security, Signal Processing and Management Strategies of Wireless Communication and Networks.

Degree Awarded By: CU

Year of Award: 2016

Current Affiliation: Faculty at IIT Dhanbad

Oishila Bandyopadhyay
Oishila Bandyopadhyay

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Bhargab B. Bhattacharya

Thesis Title: Medical Image Processing, Digital Geometry

Degree Awarded By: IIEST

Year of Award: 2016

Sukanta Bhattacharjee
Sukanta Bhattacharjee

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Bhargab B. Bhattacharya

Thesis Title: EDA, Microfluidics, Formal Methods

Degree Awarded By: ISI

Year of Award: 2017

Current Affiliation: Post-doctoral Associate, New York University

Swati Prabhu MJ
Swati Prabhu MJ

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Sandip Das

Thesis Title: Variants of coloring for Oriented Graphs

Degree Awarded By: ISI

Year of Award: 2018

Current Affiliation: Faculty at Ramakrishna Mission Vivekananda Educational and Research Institute

Website

Soumen Nandi
Soumen Nandi

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Sandip Das

Thesis Title: Graph Coloring and Labeling, Computational Geometry.

Degree Awarded By: ISI

Year of Award: 2018

Current Affiliation: Faculty at BITS Pilani, Hydrabad

Ayan Nandy
Ayan Nandy

Senior Research Fellow

Unit: ACMU

Division: CCSD

Supervisor(s): Prof. Sandip Das

Thesis Title: Discrete and Computational Geometry.

Degree Awarded By: ISI

Year of Award: 2018

Current Affiliation: Faculty at NIIT University

Subhash Bhagat
Subhash Bhagat

Senior Research Fellow

Unit: ACMU

Division: CCSD

subhash.bhagat.math@gmail.com

Supervisor(s): Prof. Krishnendu Mukhopadhyaya

Thesis Title: Distributed Gathering Algorithms for Swarm Robots

Degree Awarded By: ISI

Year of Award: 2019

Current Affiliation: Faculty at IIT Jodhpur

Website

Sameer Desai
Sameer Desai

Senior Research Fellow

Unit: ACMU

Division: CCSD

sameer.indirock@gmail.com

Supervisor(s): Prof. Arijit Bishnu

Thesis Title: Geometric Packing, Covering and Uniformity

Degree Awarded By: ISI

Year of Award: 2019

Ankush Acharyya
Ankush Acharyya

Senior Research Fellow

Unit: ACMU

Division: CCSD

ankushacharyya@gmail.com

Supervisor(s): Prof. Subhas C. Nandy

Thesis Title: Facility Location Problems in Colored Setup

Degree Awarded By: ISI

Year of Award: 2019

Current Affiliation: Faculty at NIT Durgapur

Website

Arindam Chatterjee
Arindam Chatterjee

Senior Research Fellow

Unit: ACMU

Division: CCSD

arindam.chatterjee@heritageit.edu

Degree Awarded By: ISI

Year of Award: 2019

Sourav Pradhan
Sourav Pradhan

Senior Research Fellow

Unit: ACMU

Division: CCSD

souravmj.rkm@gmail.com

Supervisor(s): Prof. Sandip Das

Degree Awarded By: ISI

Year of Award: 2019

Soumi Chattopadhyay
Soumi Chattopadhyay

Senior Research Fellow

Unit: ACMU

Division: CCSD

soumi61@gmail.com

Supervisor(s): Prof. Ansuman Banerjee

Thesis Title: Scalable Algorithms for Web Service Composition and Recommendation

Degree Awarded By: ISI

Year of Award: 2019

Current Affiliation: Faculty at IIT Indore

Website

Manjari Pradhan
Manjari Pradhan

Senior Research Fellow

Unit: ACMU

Division: CCSD

manjari23march@gmail.com

Supervisor(s): Prof. Bhargab B. Bhattacharya

Thesis Title: Studies on Diagnostic Coverage and X-Sensitivity in Logic Circuits: Combinatorial and Machine-Learning Based Approaches

Degree Awarded By: ISI

Year of Award: 2020

Current Affiliation: Ex R&D in Synopsis

Website

Dibyayan Chakraborty
Dibyayan Chakraborty

Senior Research Fellow

Unit: ACMU

Division: CCSD

dibyayancg@gmail.com

Supervisor(s): Prof. Sandip Das

Thesis Title: Recognition and domination on intersection and overlap graphs of rectangles

Degree Awarded By: ISI

Year of Award: 2020

Current Affiliation: Lecturer at the University of Leeds

Website

Gopinath Mishra
Gopinath Mishra

Senior Research Fellow

Unit: ACMU

Division: CCSD

gopianjan117@gmail.com

Supervisor(s): Prof. Arijit Bishnu and Prof. Arijit Ghosh

Thesis Title: On some estimation problems through the sub-linear lens

Degree Awarded By: ISI

Year of Award: 2021

Current Affiliation: Faculty at IMSc

Website

Satyabrata Jana
Satyabrata Jana

Senior Research Fellow

Unit: ACMU

Division: CCSD

satyamtma@gmail.com

Supervisor(s): Prof. Sasanka Roy

Thesis Title: Computing Well-Structured Subgraphs in Geometric Intersection Graphs

Degree Awarded By: ISI

Year of Award: 2021

Current Affiliation: Postdoctoral Fellow at University at Warwick

Website

Shankar Kumar Ghosh
Shankar Kumar Ghosh

Senior Research Fellow

Unit: ACMU

Division: CCSD

shankar.it46@gmail.com

Supervisor(s): Prof. Sasthi C. Ghosh

Thesis Title: Efficient Handover Mechanisms for Heterogeneous Networks.

Degree Awarded By: ISI

Year of Award: 2021

Current Affiliation: Faculty at SNU, Noida

Website

Uma Kant Sahoo
Uma Kant Sahoo

Senior Research Fellow

Unit: ACMU

Division: CCSD

umakant.iitkgp@gmail.com

Supervisor(s): Prof. Sandip Das

Thesis Title: Arrangement Graphs and Intersection Graphs of Curves

Degree Awarded By: ISI

Year of Award: 2022

Subhankar Ghoshal
Subhankar Ghoshal

Senior Research Fellow

Unit: ACMU

Division: CCSD

subhoghosal7@gmail.com

Supervisor(s): Prof. Sasthi C. Ghosh

Thesis Title: Randomized algorithms for resource allocation in device to device communication

Degree Awarded By: ISI

Year of Award: 2022

Current Affiliation: Faculty at JAIN Bengaluru

Website

Durgesh Singh
Durgesh Singh

Senior Research Fellow

Unit: ACMU

Division: CCSD

durgesh.ccet@gmail.com

Supervisor(s): Prof. Sasthi C. Ghosh

Thesis Title: EFFICIENT RELAY SELECTION TECHNIQUES FOR D2D COMMUNICATION UNDER USER MOBILITY AND PRESENCE OF OBSTACLES

Degree Awarded By: ISI

Year of Award: 2022

Current Affiliation: Faculty at Thapar Institute of Engineering and Technology

Website

Harmender Gahlawat
Harmender Gahlawat

Senior Research Fellow

Unit: ACMU

Division: CCSD

harmendergahlawat@gmail.com

Supervisor(s): Prof. Sandip Das

Thesis Title: The Cops and Robber game on some graph classes

Degree Awarded By: ISI

Year of Award: 2022

Current Affiliation: Postdoctoral researcher in the LIMOS group at Université Clermont Auvergne (UCA), France,

Website

Sanjana Dey
Sanjana Dey

Senior Research Fellow

Unit: ACMU

Division: CCSD

info4.sanjana@gmail.com

Supervisor(s): Prof. Subhas C. Nandy

Thesis Title: On finding optimal sub-structures in graphs

Degree Awarded By: ISI

Year of Award: 2022

Current Affiliation: Postdoctoral Fellow at Mathematics Department and Complexys Institute in UMONS – Université de Mons, Belgium

Website

Manaswi Paraashar
Manaswi Paraashar

Senior Research Fellow

Unit: ACMU

Division: CCSD

manaswi.isi@gmail.com

Supervisor(s): Prof. Sourav Chakraborty

Thesis Title: Quantum query complexity through the lens of communication complexity and exact learning

Degree Awarded By: ISI

Year of Award: 2022

Current Affiliation: Faculty at IIT Hyderabad

Website

Ritajit Majumdar
Ritajit Majumdar

Senior Research Fellow

Unit: ACMU

Division: CCSD

mojutijatir@gmail.com

Supervisor(s): Prof. Susmita Sur-Kolay

Thesis Title: Efficient Reduction of Resources and Noise in Discrete Quantum Computing Circuits

Degree Awarded By: ISI

Year of Award: 2022

Current Affiliation: Research Scientist at IBM Quantum

Website

Subhasis Koley
Subhasis Koley

Senior Research Fellow

Unit: ACMU

Division: CCSD

csesubh_contact@yahoo.co.in

Supervisor(s): Prof. Sasthi C. Ghosh

Thesis Title: Improved lower and upper bounds on the span of distance labeling for some infinite regular grids

Degree Awarded By: ISI

Year of Award: 2023

Subhadeep Ranjan Dev
Subhadeep Ranjan Dev

Senior Research Fellow

Unit: ACMU

Division: CCSD

info.subhadeep@gmail.com

Supervisor(s): Prof. Sandip Das

Thesis Title: Center Location and Related Problems on Graphs and Polyhedral Space.

Degree Awarded By: ISI

Year of Award: 2023

Manobendra Nath Mondal
Manobendra Nath Mondal

Senior Research Fellow

Unit: ACMU

Division: CCSD

manobmondal@gmail.com

Supervisor(s): Prof. Susmita Sur-Kolay & Prof. Bhargab B. Bhattacharya

Thesis Title: Memoristive Crossbars: ALU Design, Testing, and Fault Analysis for Neuromorphic Applications.

Degree Awarded By: ISI

Year of Award: 2023

Current Affiliation: Faculty at UPES, Dehradun

Website

Kaustabha Ray
Kaustabha Ray

Senior Research Fellow

Unit: ACMU

Division: CCSD

kaustabharay@gmail.com

Supervisor(s): Prof. Ansuman Banerjee

Thesis Title: Policy Design and Verification for Multi-Access Edge Computing: A Formal Methods Perspective

Degree Awarded By: ISI

Year of Award: 2023

Current Affiliation: Research Scientist at IBM Research

Website

Arun Kumar Das
Arun Kumar Das

Senior Research Fellow

Unit: ACMU

Division: CCSD

arund426@gmail.com

Supervisor(s): Prof. Sandip Das

Thesis Title: Some Geometric Problems on Location Detection.

Degree Awarded By: ISI

Year of Award: 2023

Current Affiliation: Faculty at University of Hyderabad

Website

Rathindra Nath Dutta
Rathindra Nath Dutta

Senior Research Fellow

Unit: ACMU

Division: CCSD

ratcoinc@gmail.com

Supervisor(s): Prof. Sasthi C. Ghosh

Thesis Title: On Resource Efficient and Obstacle Aware Link Selection in D2D Communications

Degree Awarded By: ISI

Year of Award: 2023

Current Affiliation: Faculty at BITS Mesra

Website

Subhojit Sarkar
Subhojit Sarkar

Senior Research Fellow

Unit: ACMU

Division: CCSD

subhojitfriends@gmail.com

Supervisor(s): Prof. Sasthi C. Ghosh

Thesis Title: Obstacle Detection and Infrastructure Deployment for Efficient Millimeter-wave Communications

Degree Awarded By: ISI

Year of Award: 2023

Current Affiliation: Project Lead at IIT Goa

Website

Bibhuti Das
Bibhuti Das

Senior Research Fellow

Unit: ACMU

Division: CCSD

dasbibhuti905@gmail.com

Supervisor(s): Prof. Krishnendu Mukhopadhyaya

Thesis Title: Distributed k-Circle Formation by Mobile Robots

Degree Awarded By: ISI

Year of Award: 2023

Current Affiliation: Postdoctoral Fellow at Université du Québec en Outaouais, Canada

Website

Abhinav Chakraborty
Abhinav Chakraborty

Senior Research Fellow

Unit: ACMU

Division: CCSD

abhinav.chakraborty06@gmail.com

Supervisor(s): Prof. Krishnendu Mukhopadhyaya

Thesis Title: Gathering at Fixed Nodes by Oblivious Mobile Robots

Degree Awarded By: ISI

Year of Award: 2023

Current Affiliation: Faculty at BITS Mesra

Website

Sayantan Sen
Sayantan Sen

Senior Research Fellow

Unit: ACMU

Division: CCSD

sayantan789@gmail.com

Supervisor(s): Prof. Sourav Chakraborty

Thesis Title: Sample and Query Complexities of Some Estimation Problems

Degree Awarded By: ISI

Year of Award: 2023

Current Affiliation: Postdoctoral Fellow at NUS, Singapore

Website

Drimit Pattanayak
Drimit Pattanayak

Senior Research Fellow

Unit: ACMU

Division: CCSD

drimitpattanayak@gmail.com

Supervisor(s): Prof. Arijit Bishnu & Mathew Francis

Thesis Title: Variants of vertex and edge colorings of graphs

Degree Awarded By: ISI

Year of Award: 2024

Chandrima Kayal
Chandrima Kayal

Senior Research Fellow

Unit: ACMU

Division: CCSD

chandrimakayal2012@gmail.com

Supervisor(s): Prof. Sourav Chakraborty

Thesis Title: Effects of symmetry in combinatorial complexity measures of Boolean functions

Degree Awarded By: ISI

Year of Award: 2024

Current Affiliation: CNRS Postdoctoral Fellow at IRIF (Institut de Recherche en Informatique Fondamentale) in France

Website

Debasmita Bhoumik
Debasmita Bhoumik

Senior Research Fellow

Unit: ACMU

Division: CCSD

debasmita.ria21@gmail.com

Supervisor(s): Prof. Susmita Sur-Kolay

Thesis Title: EFFICIENT METHODS FOR TACKLING ERROR IN DISCRETE QUANTUM CIRCUITS

Degree Awarded By: ISI

Year of Award: 2025

Current Affiliation: Research Scientist at IBM Quantum

Website

Sk Samim Islam
Sk Samim Islam

Senior Research Fellow

Unit: ACMU

Division: CCSD

samimislam08@gmail.com

Supervisor(s): Prof. Sandip Das

Thesis Title: Multipacking on graphs and Euclidean metric space

Degree Awarded By: ISI

Year of Award: 2025

Soumi Nandi
Soumi Nandi

Senior Research Fellow

Unit: ACMU

Division: CCSD

nandisoumi1@gmail.com

Supervisor(s): Prof. Sourav Chakraborty and Arijit Ghosh

Thesis Title: Piercing and Covering Results in Combinatorial Geometry

Degree Awarded By: ISI

Year of Award: 2025

Current Affiliation: Postdoctoral Fellow at The Institute of Mathematical Sciences (IMSc), Chennai.

Website

Avijeet Ghosh
Avijeet Ghosh

Senior Research Fellow

Unit: ACMU

Division: CCSD

avi.ghosh23@gmail.com

Supervisor(s): Prof. Sourav Chakraborty

Thesis Title: Complexity Study of Knowledge and Public Observation

Degree Awarded By: ISI

Year of Award: 2025

Current Affiliation: Postdoctoral Fellow at École Normale Supérieure de Lyon

Souvik Deb
Souvik Deb

Senior Research Fellow

Unit: ACMU

Division: CCSD

deb.souvik5@gmail.com

Supervisor(s): Prof. Sasthi C. Ghosh

Thesis Title: Identifying and Overcoming Some Operational Limitations of Reconfigurable Intelligent Surfaces in 5G and Beyond Wireless Networks.

Degree Awarded By: ISI

Year of Award: 2026