PhD Student | +91-9434053843




Applied Geology, Jadavpur University, 2010.


B.Sc, Honours in Geological Sciences, Jadavpur University, 2008.

Research Field

Paleoclimatology | Isotope hydrology

Research Interest

  • Sedimentology , Sequence Stratigraphy , Basin Evolution in Himalayan Foreland Sediments.
  • Stable Isotope Geochemistry , Organic Geochemistry , Paleo - Climate and Vegetation reconstruction.
  • Role of Tectonic and Climate in basin evolution , Role of Himalaya and Tibetan orography for Indian Summer Monsoon.


  • Geological Field Work-Lithological and Structural Mapping, Logging, Facies Analysis, Sequence boundary identification.
  • Technical-Routine operation-cum-maintenance of IRMS MAT 253.
  • Technical-Inter-laboratory calibration of various secondary standard.
  • Technical-Establishment of experimental protocol for Carbonate, Organic Matter.
  • Technical-Establishment of experimental protocol for compound specific isotope analysis for the first time in India.
  • Technical-Establishment of experimental protocol for compound specific characterization and quantification of organic matter (n-alkane) in GC - FID system.


Ranked 11th Joint CSIR-UGC Test for Junior Research fellowship and Eligibility for Lectureship, 2012.


1) Sambit Ghosh, Prasanta Sanyal and Rohtash Kumar, 2017. Evolution of C4 plants and controlling factors: Insight from n-alkane isotopic values of NW Indian Siwalik paleosols. Organic Geochemistry, 110,110–121.


1) Preservation bias of soil organic matter in the Siwalik sediment (Poster presentated, Departmental Day 2013).
2) Molecular level isotopic characterization of Siwalik paleosol organic matter: implication to paleovegetation and paleoclimate ( Talk delivered, Departmental Day 2014).