2017
- Insights into selenylation of imidazo[1,2-a]pyridine: synthesis, structural and antimicrobial evaluation
(New Journal of Chemistry, 2017, DOI: 10.1039/C7NJ00338B)
Sanjeev Kumar, Nidhi Sharma, Indresh K. Maurya, Ajay Verma, Sangit Kumar, K K Bhasin and Rohit K Sharma - Transition-metal-free Chemoselective Oxidative C?C Coupling of the sp3 C?H Bond of Oxindoles with Arenes and Addition to Alkene: Synthesis of 3-Aryl Oxindoles, and Benzofuro- and Indoloindoles
(DOI: 10.1002/asia.201601647)
Moh. Sattar, Vandana Rathore, Ch. Durga Prasad and Dr. Sangit Kumar - Transition-Metal-Free Selective Oxidative C(sp3)–S/Se Coupling of Oxindoles, Tetralone, and Arylacetamides: Synthesis of Unsymmetrical Organochalcogenides
(Org. Lett., 2017, 19 (4), pp 774–777)
Ch. Durga Prasad, Moh. Sattar and Dr. Sangit Kumar
2016
- Synthesis, structural analysis, antimicrobial evaluation and synergistic studies of imidazo[1,2-a]pyrimidine chalcogenides
(RSC Advances., 2016, 6, 114224-114234; DOI: 10.1039/C6RA24020H)
Nidhi Sharma, Sanjeev Kumar, Indresh K. Maurya, K. K. Bhasin, Ajay Verma, Nishima Wangoo, Aman K. K. Bhasin, S. K. Mehta, Sangit Kumar and Rohit K. Sharma - Synthesis of Unsymmetrical Diaryl Acetamides, Benzofurans, Benzophenones, and Xanthenes by Transition-Metal-Free Oxidative Cross-Coupling of sp3 and sp2 C–H Bonds
(J. Org. Chem., 2016, 81 (19), pp 9206–9218)
Vandana Rathore, Moh. Sattar, Raushan Kumar and Sangit Kumar - Selective Oxidative Decarbonylative Cleavage of Unstrained C(sp3)–C(sp2) Bond: Synthesis of Substituted Benzoxazinones
(Organic Letters, 2016, 18, 4388-4391; DOI: 10.1021/acs.orglett.6b02142)
Ajay Verma and Sangit Kumar - Saturable absorption in one-dimensional Sb2Se3 nanowires in the visible to near-infrared region
(Optics Letters Vol. 41, Issue 9, pp. 2049-2052 (2016))
Rajesh Kumar Yadav, Rituraj Sharma, J. Aneesh, P. Abhiramnath and K. V. Adarsh - Organoselenium and DMAP co-catalysis: regioselective synthesis of medium-sized halolactones and bromooxepanes from unactivated alkenes
(Chem. Commun., 2016, 52, 4179-4182)
Ajay Verma, Sadhan Jana, Ch. Durga Prasad, Abhimanyu Yadav and Sangit Kumar - Palladium-Catalyzed C-H Functionalization of Ferrocene Carboxylic Acid by using 8-Aminoquinoline as a Removable Directing Group
(Advanced Synthesis & Catalysis 2016, 358, 240-253)
Moh. Sattar, Praveen, Ch. Durga Prasad, Ajay Verma, Shailesh Kumar and Sangit Kumar - Synthesis and structural characterization of monomeric mercury(II) selenolate complexes derived from 2-phenylbenzamide ligands
(Dalton Trans., 2016,45, 4030-4040)
Saket Patel, Meenakshi, Ananda S. Hodage, Ajay Verma, Shailendra Agrawal, Abhimanyu Yadav and Sangit Kumar
2015
- Tuning nanosecond transient absorption in a–Ge25As10Se65 thin films via background illumination
(Optics Letters 40 (19), 4512-4515)
Pritam Khan, Rajesh Kumar Yadav, Arinjoy Bhattacharya, Abin Joshy, J Aneesh and Kv Adarsh - Enantioselective Synthesis of Highly Substituted Chromans via the Oxa-Michael–Michael Cascade Reaction with a Bifunctional Organocatalyst
(J. Org. Chem., 2015, 80, 11115–11122)
Prasenjit Saha, Arnab Biswas, Nagaraju Molleti and Vinod K. Singh - Silver-mediated thio-acetoxylation and TFA triggered cyclization of amino disulfides with unactivated alkenes: synthesis of 3-aryl/alkyl-1,4-benzothiazines
(RSC Adv., 2015,5, 75881-75888, DOI: 10.1039/C5RA12995H)
Ch. Durga Prasad, Ajay Verma, Moh Sattar and Sangit Kumar - Copper-Catalyzed Trifluoromethylation of Alkenes: Synthesis of Trifluoromethylated Benzoxazines
(Org. Biomol. Chem., 2015,13, 8411-8415, DOI:10.1039/C5OB01196E)
Sadhan Jana, Athira Ashokan, Shailesh Kumar, Ajay Verma and Sangit Kumar - Nanosecond light-induced transient absorption in As2S3: Self-trapped exciton recombination in amorphous chalcogenides
(Journal of Non-Crystalline Solids 426, 72-77)
Pritam Khan, Prodip Acharja, Abin Joshy, Arinjoy Bhattacharya, Deepak Kumar and K.v. Adarsh - KOtBu-mediated annulation of acetonitrile with aldehyde: Synthesis of substituted dihydropyridin-2(1H)-ones, pyridin-2(1H)-ones, and thiopyridin-2(1H)-ones
(Chemical Communications 2015, 51, 11658 -11661)
Abhimanyu Yadav, Ajay Verma, Saket Patel, Amit Kumar, Vandana Rathore, Meenakshi, Shailesh Kumar and Sangit Kumar - Organocatalytic Enantio- and Diastereoselective Synthesis of Highly Substituted ?-Lactones via Michael-Cyclization Cascade
(Chem. Commun., 2015, 51, 9793)
Santosh Agrawal, Nagaraju Molleti and Vinod K Singh - Double Functionalization of 2-Amino-2-hydroxy-1,1-biaryls: Synthesis of 4-Nitro-dibenzofurans and Benzofuro-indoles
(RSC Advances | 2015, 5, 44728-44741)
Amit Kumar, Moh Sattar, Ajay Verma, Ankit Dara and Sangit Kumar - Highly Enantioselective Synthesis of Naphthoquinones and Pyranonaphthoquinones Catalyzed by Bifunctional Chiral Bis-Squaramides
(Org. Biomol. Chem., 2015, 13, 5243)
Nagaraju Molleti and Vinod K Singh
2014
- KOtBu-Mediated Aerobic Transition-Metal-Free Regioselective beta-Arylation of Indoles: Synthesis of ?-(2-/4-Nitroaryl)-indoles
(Organic Letters, 2015, 17, 82-85)
Shailesh Kumar, Vandana Rathore, Ajay Verma, Ch. Durga Prasad, Amit Kumar, Abhimanyu Yadav, Sadhan Jana, Moh. Sattar, Meenakshi and Sangit Kumar - Transition Metal Free Intramolecular Selective Oxidative C(sp3)-N Coupling: Synthesis of N-Aryl-isoindolinones from 2-Alkylbenzamides
(Chemical Communications, 2015, 51, 1371-1374)
Ajay Verma, Saket Patel, Meenakshi, Amit Kumar, Abhimanyu Yadav, Shailesh Kumar, Sadhan Jana, Shubham Sharma, Ch Durga Prasad and Sangit Kumar - Nanosecond light induced, thermally tunable transient dual absorption bands in a-Ge5As30Se65 thin film
(Scientific Reports 4, 6573 (2014))
Pritam Khan, Tarun Saxena, Himanshu Jain and K V Adarsh - Prototropic Transformation and Rotational?Relaxation Dynamics of a Biological Photosensitizer Norharmane inside Nonionic Micellar Aggregates
(J. Phys. Chem. B, 2014, 118 (38), pp 11209–11219 DOI: 10.1021/jp5056717)
Bijan Kumar Paul, Narayani Ghosh and Saptarshi Mukherjee - Entropy Current for Non-relativistic Fluid
(10.1007 / JHEP 08 (2014) 037 )
Nabamita Banerjee, Suvankar Dutta, Akash Jain and Dibakar Roychowdhury - Aliphatic amine discrimination by Pentafluorophenyl-dibromo BODIPY
(DOI: 10.1002/asia.201402389)
Adiki Raja Sekhar, Masood Ayoub Kaloo and Jeyaraman Sankar - Signaling of Chloroquine-Induced Stress in the Yeast Saccharomyces cerevisiae Requires the Hog1 and Slt2 Mitogen-Activated Protein Kinase Pathways
(Antimicrob. Agents Chemother. September 2014 vol. 58 no. 9 5552-5566)
Shivani Baranwal, Gajendra Kumar Azad, Vikash Singh and Raghuvir Singh Tomar - Chemoselective arylation of phenols with bromo-nitroarenes: synthesis of nitro-biaryl-ols and their conversion into benzofurans and carbazoles
(Chem. Commun., 2014,50, 9481-9484)
Amit Kumar, Abhimanyu Yadav, Ajay Verma, Sadhan Jana, Moh. Sattar, Shailesh Kumar, Durga Prasad and Sangit Kumar - Modulating the magnetic properties by structural modification in a family of Co-Ln (Ln = Gd, Dy) molecular aggregates†‡
(Dalton Trans., 2014,43, 14577-14585)
Javeed Ahmad Sheikh, Soumyabrata Goswami and Sanjit Konar - Analysis of intermolecular interactions in 3-(4-fluoro-3-phenoxyphenyl)- 1-((4-methylpiperazin-1-yl)methyl)-1H-1,2,4-triazole-5-thiol
(J. Chem. Sci. Vol. 126, No. 5, September 2014, pp. 1337–1345)
Piyush Panini, Rahul Shukla, T. P. Mohan, B Vishalakshi and Deepak Chopra - Anti-cancer drug KP1019 induces Hog1 phosphorylation and protein ubiquitylation in Saccharomyces cerevisiae.
(Eur J Pharmacol. 2014 Aug 5;736:77-85. doi: 10.1016/j.ejphar.2014.04.032. Epub 2014 May 2)
Singh V, Azad G K, Reddy M A, Baranwal S and Tomar R S - Binding Interaction of a Prospective Chemotherapeutic Antibacterial Drug with ??Lactoglobulin: Results and Challenges
(10.1039/C4MB00306C)
Bijan Kumar Paul, Narayani Ghosh and Saptarshi Mukherjee - Anti-cancer drug KP1019 modulates epigenetics and induces DNA damage response in Saccharomyces cerevisiae.
(FEBS Lett. 2014 Mar 18;588(6):1044-52. doi: 10.1016/j.febslet.2014.02.017. Epub 2014 Feb 20.)
Singh V, Azad G K, Reddy M A and Tomar R S - Assessment of the biological pathways targeted by isocyanate using N-succinimidyl N-methylcarbamate in budding yeast Saccharomyces cerevisiae.
(PLoS One. 2014 Mar 24;9(3):e92993. doi: 10.1371/journal.pone.0092993. eCollection 2014.)
Azad GK, Singh V and Raghuvir S. Tomar - Pu@C24: A New Example Satisfying 32-electron Principle
(J. Phys. Chem. C, 2014, 118 (13), pp 7211–7221)
Debashree Manna, Abhishek Sirohiwal and Tapan K. Ghanty - KOtBu-Mediated Synthesis of Dimethylisoindolin-1-ones and Dimethyl-5-phenylisoindolin-1-ones: Selective C–C Coupling of an Unreactive Tertiary sp3 C–H Bond
(J. Org. Chem., 2014, 79 (7), pp 2944–2954)
Bhagat Singh Bhakuni, Abhimanyu Yadav, Shailesh Kumar, Saket Patel, Shubham Sharma and Sangit Kumar - Magnetic refrigeration and slow magnetic relaxation in tetranuclear lanthanide cages (Ln = Gd, Dy) with in situ ligand transformation.
(New J. Chem., 2014,38, 3006-3014)
Javeed Ahmad Sheikh, Soumyabrata Goswami and Sanjit Konar - Magnetic refrigeration and slow magnetic relaxation in tetranuclear lanthanide cages (Ln = Gd, Dy) with in situ ligand transformation.
(New J. Chem., 2014,38, 3006-3014)
Javeed Ahmad Sheikh, Soumyabrata Goswami and Sanjit Konar - An ebselen like catalyst with enhanced GPx activity via a selenol intermediate.
( Org Biomol Chem. 2014 Feb 28;12(8):1215-9. doi: 10.1039/c4ob00027g.)
Balkrishna SJ, Kumar S, Azad GK, Bhakuni BS, Panini P, Ahalawat N, Tomar RS, Detty MR and Kumar S - A new meso–meso directly-linked corrole– porphyrin–corrole hybrid: synthesis and photophysical properties
(RSC Adv., 2014, 4, 13669-13672 )
M Murugavel, R V Ramana Reddy and J Sankar - A new meso–meso directly-linked corrole– porphyrin–corrole hybrid: synthesis and photophysical properties
(RSC Adv., 2014, 4, 13669-13672 )
Muthuchamy Murugavel, R. V. Ramana Reddy and Jeyaraman Sankar - Luminescent Silver Nanoclusters Acting as a Label-Free Photoswitch in Metal Ion Sensing
(Anal. Chem., 2014, 86 (6), pp 3188–3194)
Subhadip Ghosh, Uttam Anand and Saptarshi Mukherjee - Sensitive and Regenerable Organochalcogen Probes for the Colorimetric Detection of Thiols
(RSC Advances, 2014, 4, 11535)
Shah Jaimin Balkrishna, Anand S. Hodage, Shailesh Kumar, Piyush Panini and Sangit Kumar - Synthesis and Characterization of Two Discrete Ln10 Nanoscopic Ladder- Type Cages: Magnetic Studies Reveal a Significant Cryogenic Magnetocaloric Effect and Slow Magnetic Relaxation
(Chem. Asian J. 2014, 9, 1083-1090)
Amit Adhikary, Himanshu Sekhar Jena, Sajal Khatua and Sanjit Konar - Synthesis, crystal structure and study of magnetocaloric effect and single molecular magnetic behaviour in discrete lanthanide complexes
(Dalton Trans. 2014, 43, 9334-9343)
Amit Adhikary, Javeed Ahmad Sheikh, Soumava Biswas and Sanjit Konar - Photoinduced formation of Ag nanoparticles on the surface of As2S3/Ag thin bilayer
(Materials Research Express 1, 045205 (2014))
Pritam Khan, Binu S, Amiya Ranjan Barik, Rituraj Sharma, Roman Golovchak, Himanshu Jain and K V Adarsh - Ebselen induces reactive oxygen species (ROS)-mediated cytotoxicity in Saccharomyces cerevisiae with inhibition of glutamate dehydrogenase being a target
(FEBS Open Bio. 2014 Jan 6;4:77-89. doi: 10.1016/j.fob.2014.01.002. eCollection 2014.)
Azad GK, Singh V, Mandal P, Singh P, Golla U, Baranwal S, Chauhan S and Tomar RS - A convenient and efficient copper-catalyzed synthesis of unsymmetrical and symmetrical diaryl chalcogenides from arylboronic acids in ethanol at room temperature
(Tetrahedron, 2014, 70, 1763)
Amit kumar and Sangit kumar - An Ebselen like Catalyst with Enhanced GPx Activity via a Selenol Intermediate
(Organic & Biomolecular Chemistry, 2014, 12, 1215)
Shah Jaimin Balkrishna, Shailesh Kumar, Gajendra Kumar Azad, Bhagat Singh Bhakuni, Piyush Panini, Navjeet Ahalawat, Raghuvir Singh Tomar, Michael R. Detty and Sangit Kumar - Synthesis, crystal structure, magnetic study and magneto-structural correlation of three Cu(II) complexes formed via pyridine bis(hydrazone) based ligand
(RSC Adv. 2014, 4, 12408-12414)
Amit Adhikary, Javeed Ahmad Sheikh, Anita Dutt Konar and Sanjit Konar - Formation of a Magnetically Coupled Neutral [4×4] Square Grid from a 2,6-Pyridinedicarbaldehyde Bis(hydrazone) Ligand
(Eur. J. Inorg. Chem. 2014, 963-967)
Amit Adhikary, Soumyabrata Goswami, Javeed Ahmad Sheikh and Sanjit Konar
2013
- AMVN-initiated expedient synthesis of biaryls by the coupling reaction of unactivated arenes and heteroarenes with aryl iodides
(New J. Chem., 2014,38, 827-836)
Bhagat Singh Bhakuni, Abhimanyu Yadav, Shailesh Kumar and Sangit Kumar - Experimental and theoretical analysis of l.p…pi intermolecular interactions in derivatives of 1,2,4-triazoles
(CrystEngComm, 2014, 16, 1702)
Rahul Shukla, T. P. Mohan, B. Vishalakshi and Deepak Chopra - A porous metal organic framework with a bcu-type topology involving in situ ligand formation – synthesis, structure, magnetic property and gas adsorption studies
( CrystEngComm, 2014, 16, 369-374. DOI: 10.1039/C3CE41612G, Paper)
Soumyabrata Goswami, Suresh Sanda and Sanjit Konar - A 3D Iron(II)-Based MOF with Squashed Cuboctahedral Nanoscopic Cages Showing Spin-Canted Long-Range Antiferromagnetic Ordering
( Inorganic Chemistry, 2013, 52 (20), pp 12064–12069. DOI: 10.1021/ic401886f, Full Paper)
Soumyabrata Goswami, Amit Adhikary, Himanshu Shekar Jena, Soumava Biswas and Sanjit Konar - Dyonic Black Hole and Holography
(JHEP 12 (2013) 060)
Akash Jain, Suvankar Dutta and Rahul Soni - High Nuclearity (Octa?, Dodeca?, and Pentadecanuclear) Metal (M = CoII, NiII) Phosphonate Cages: Synthesis, Structure, and Magnetic Behavior
(Inorg. Chem., 2014, 53,1606–1613)
Javeed Ahmad Sheikh, Amit Adhikary, Himashu Sekhar Jena, Soumava Biswas and Sanjit Konar - Theoretical Prediction of Rare Gas Containing Hydride Cations: HRgBF+ (Rg= He, Ar, Kr and Xe)
(J. Phys. Chem. A, 2013, 117 (41), pp 10772–10782)
Abhishek Sirohiwal, Debashree Manna, Ayan Ghosh, Thankan Jayasekharan and Tapan K. Ghanty - Metal Free Sulfenylation and Bis-Sulfenylation of Indoles: Persulfate Mediated Synthesis in Methanol
(Org. Biomol. Chem., 2013,11, 8036-8040)
Ch. Durga Prasad, Shailesh Kumar, Moh. Sattar, Amit Adhikary and Sangit Kumar - Synthesis, Characterization and Crystal Structure of 2-((4-Bromophenyl)carbamoyl)phenylselenenyl Bromide Derived from an Oxidative Addition of Bromine to 2-Phenyl-1,2-benzoisoselenazol-3-(2H)-one
(Indian Journal of Chemistry, Section A, 2013, 52A, 1078)
Shah Jaimin Balkrishna, Amit Kumar, Piyush Panini, Shailesh Kumar and Sangit Kumar - An Unprecedented Octadecanuclear Copper(II) Pyrazolate? Phosphonate Nanocage: Synthetic, Structural, Magnetic, and Mechanistic Study
(Inorg. Chem. 2013, 52, 9717?9719)
Javeed Ahmad Sheikh, Himashu Sekhar Jena, Amit Adhikary, Sajal Khatwa and Sanjit Konar - Exclusive Fluoride Ion Recognition and Fluorescence “turn-on” Response with a Label-free DMN Schiff base
(Opt. Express 20, 12416-12421 (2012))
Masood Ayub Kaloo and Dr. Jeyaraman Sankar - Unexpected histone H3 tail-clipping activity of glutamate dehydrogenase.
(J Biol Chem. 2013 Jun 28;288(26):18743-57. doi: 10.1074/jbc.M113.462531.)
Mandal P, Verma N, Chauhan S and Tomar R S - Bifunctional chiral urea catalyzed highly enantioselective Michael addition of cyclic 1,3-dicarbonyl compounds to 2-enoylpyridines
(Tetrahedron. Lett. 2013, 54, 3241-3244)
Nagaraju Molleti, Suresh Allu, Sumit K Ray and Vinod K Singh - Lanthanide based coordination polymers chill, relax under magnetic field and also fluoresce.
( Dalton Trans., 2013,42, 9813-9817 DOI: 10.1039/C3DT51195B, Communication)
Soumyabrata Goswami, Amit Adhikary, Himanshu Shekar Jena and Sanjit Konar - Sen1p contributes to genomic integrity by regulating expression of ribonucleotide reductase 1 (RNR1) in Saccharomyces cerevisiae
(PLoS One. 2013 May 31;8(5):e64798. doi: 10.1371/journal.pone.0064798. Print 2013.)
Golla U , Singh V, Azad GK, Singh P, Verma N, Mandal P, Chauhan S and Tomar RS - Potassium tert-butoxide-mediated synthesis of unsymmetrical diaryl ethers, sulfides and selenides from aryl bromides
(Tetrahedron, 2013, 69, 5383)
Amit Kumar, Bhagat Singh Bhakuni, Ch Durga Prasad, Shailesh Kumar and Sangit Kumar - Investigating the evolution of drug mediated silver nanoparticles
(Analyst, 2013, 138, 4270)
Subhadip Ghosh, Uttam Anand and Saptarshi Mukherjee - Serendipitous Assemblies of Two Large Phosphonate Cages: A Co15 Distorted Molecular Cube and a Co12 Butterfly Type Core Structure
(Inorg. Chem. 2013, 52, 4127?4129)
Javeed, Soumyabrata, Amit and S. Konar - Serendipitous Assemblies of Two Large Phosphonate Cages: A Co15 Distorted Molecular Cube and a Co12 Butterfly Type Core Structure
(Inorg. Chem. 2013, 52, 4127?4129)
Javeed Ahmad Sheikh, Soumyabrata Goswami, Amit Adhikary and Sanjit Konar - Airborne Black Carbon Concentrations over an Urban Region in Western India-Temporal Variability, Effects of Meteorology and Source Regions
(Environ Sci. Pol. Res., Springer Publications. DOI 10.1007/s11356-012-1053-3)
Mukund Bapna, S Ramachandran, T A Rajesh and Dr. Ramya Sunder Raman - Depletion of cellular iron by curcumin leads to alteration in histone acetylation and degradation of Sml1p in Saccharomyces cerevisiae.
(PLoS One. 2013;8(3):e59003. doi: 10.1371/journal.pone.0059003. Epub 2013 Mar 8.)
Azad GK, Singh V, Golla U and Tomar R S
2012
- Toggling Between Blue- and Red-Emitting Fluorescent Silver Nanoclusters
(J. Phys. Chem. Lett., 2012, 3 (23), pp 3605–3609)
Uttam Anand, Subhadip Ghosh and Saptarshi Mukherjee - Enantioselective Synthesis of Coumarin Derivatives byPYBOX-DIPH-Zn(II) Complex Catalyzed Michael Reaction
(J. Org. Chem. 2012, 77, 8802)
Sumit K Ray, Pradeep K Singh, Nagaraju Molleti and Vinod K Singh - Highly enantioselective conjugate addition of malononitrile to 2-enoylpyridines with bifunctional organocatalyst.
(Org. Lett. 2012. 14. 4322-4325)
Nagaraju Molleti, Nirmal K. Rana and Vinod K Singh - Identification of a novel histone H3 specific protease activity in nuclei of chicken liver
(Biochem Biophys Res Commun. 2012 May ;421(2):261-7. doi: 10.1016/j.bbrc.2012.03.149. Epub 2012 Apr 6)
Mandal P, Azad G K and Raghuvir S. Tomar - Coexistence of Fast Photodarkening and slow Photobleaching in Ge19As21Se60 Thin Films
(Opt. Express 20, 12416-12421 (2012))
Pritam Khan, Amiya Ranjan Barik, E M Vinod, K S Sangunni, H Jain and K V Adarsh - Multifunctional Ebselen drug functions through the activation of DNA damage response and alterations in nuclear proteins
(Biochem Pharmacol. 2012 Jan 15;83(2):296-303. doi: 10.1016/j.bcp.2011.10.011. Epub 2011 Oct 18.)
Azad GK, Balkrishna SJ, Sathish N, S Kumar and Tomar R S
2011
- Enantioselective organocatalytic aldol reaction of unactivated ketones with isatins
(Tetrahedron. Lett. 2011, 52, 4080-4083)
Suresh Allu, Nagaraju Molleti, Ramachandrarao Panem and Vinod K Singh - Exploring the Mechanism of Fluorescence Quenching in Proteins Induced by Tetracycline
(J Phys Chem B. 2011 May 19;115(19):6312-20. Epub 2011 Apr 27)
Uttam Anand, Chandrima Jash, Bodepalli Ravikiran, Aseem Shrivastava and Dr. Saptarshi Mukheerjee