1. Member, College Event Management and Function Committee, Ram Lal Anand College,
University of Delhi
2. Member, Eco Club (Vasudha), Ram Lal Anand College, University of Delhi

Critical minerals and REEs; Clean Coal Energy; Coal Geology

Fuel Geology, Palaeontology, Research Methods in Geosciences, Techniques of Sample Collection &
Processing in Geology, Crustal Evolution with Time, Greenbelt Development

•  Upadhayay, N. K., Naik, A. S., Rai, S., Singh, P. K., Kumar, A., Rahim, A., Hakimi, M.H.,
Kumar, G. & Rajak, P. K. (2025). Geochemical and petrological characteristics coupled
with stable isotope of the Permian Gondwana coals from Tatapani–Ramkola Coalfield,
Son–Mahanadi Basin, India: Insights for paleodepositional and paleoclimate conditions.
International Journal of Coal Geology, 104882.

•  Rai S., Singh A. L., & Singh P. K. (2024). Demineralization of Coal from Johilla Coalfield
using Neutrophilic Native Bacteria: A Novel Technique to obtain REE from Coal. Journal
of Geological Society of India, 100(4), 486-494.

• . Rai S., Singh A. L., Singh P. K., Kumar S., & Huisingh D. (2023). Optimization of
extrinsic parameters for beneficiation of coal with the help of Cronobacter sp.
International Journal of Coal Preparation and Utilization, 1-16.

• Tripathi A., Arora A., Rai S., Naik A.S., & Singh P. K. (2023). Study of surface
microstructures and associated minerals in the coals of Singrauli coalfield, M.P., (India):
Industrial implications. Journal of scientific research. 67(3). 1-10.

• . Naik A. S., Singh V., Mohanty D., Majhi R. K., Kumar G., Upadhyay N., Kumari M. &
Rai S. (2023). Organic Petrological Facets and the Evolution of Paleomire, Matasukh
Lignite Deposits, Rajasthan, India. Journal of the Geological Society of India, 99(10),
1372-1378.

• . Rai S., Rai A., Kumar K., Naik A. S., Singh N., Srivastava D. K., & Singh P. K. (2022).
Study of micro-structures and their relation with occurrence of mineral matter in
Ramagundam Coals, Godavari basin, India: implications on coal and hydrocarbon
industries. Journal of the Geological Society of India, 98, 88-92.

•  Kumar H., Rai S., Rai A., Faheem A., Naik A. S., Rajak P. K., Srivastava D.K., Maurya
D.S., Chatterjee D. & Singh P. K. (2022). Characterization of composite coal seam III–IV
of Ramagundam coalfield, Godavari Basin (India): an attempt to evaluate CBM prospects.
Arabian Journal of Geosciences, 15(16), 1400.

• . Rajak P. K., Singh V. K., Kumar A., Singh V., Rai A., Rai S., Singh K.N., Sharma M.,
Naik A.S., Mathur N. & Singh P. K. (2021). Study of Hydrocarbon Source Potential of
Kapurdi Lignites of Barmer Basin, Rajasthan, Western India. Journal of the Geological
Society of India, 97, 836-842.

• . Rajak P. K., Singh V. K., Singh A. L., Kumar N., Kumar O. P., Singh V., Kumar A., Rai
A., Rai S., Naik A.S. & Singh P. K. (2020). Study of minerals and selected environmentally
sensitive elements in Kapurdi lignites of Barmer Basin, Rajasthan, Western India:
Implications to environment. Geosciences Journal, 24, 441-458.

• . Medunić G., Singh P. K., Singh A. L., Rai A., Rai S., Jaiswal M. K., Obrenović Z.,
Petković Z. & Janeš M. (2019). Use of bacteria and synthetic zeolites in remediation of
soil and water polluted with superhigh-organic-sulfur Raša coal (Raša Bay, North Adriatic,
Croatia). Water, 11(7), 1419.

• Poster presentation in the first ‘National Symposium on Critical Mineral Exploration-
NSCME 2026’ at IIT Dhanbad on the topic ‘Geomicrobiological controls on Coal   demineralization and Rare Earth Element mobilization: Insight from functional gene  analysis’.

•  Oral presentation in Goldschmidt Conference- 2023 (9-14 July, Lyon, France) on the
topic ‘Native neutrophilic coal bacteria- A potential tool for extraction of trace elements
and Rare Earth Elements’.

• . Poster presentation entitled ‘Use of Bacteria for removal of selective hazardous metals
from sulfur-rich coals of Croatia’ in “Recent Trends in Earth Science Research”
organized by Department of Geology, BHU, India (2019).

1. H.S. Pareek Award (2024), The Geological Society of India
2. CSIR-UGC NET (2017)
3. GATE (2017)
4. Summer Research Fellowship jointly sponsored by I.A.Sc.(Bengaluru), INSA (New Delhi) and
      NASI (Allahabad) (2015)