Khadg Singh Validiya did his BSc, MSc and PhD degrees from Lucknow University. He joined Lucknow University in 1957 and was Fulbright Fellow (1965-66) for postdoctoral studies at Johns Hopkins University, USA. He worked as Reader, Rajasthan University, Udaipur (1969-70), and was Senior Scientist (1970-73), Deputy Director (1973-76) and Additional Director (1980), Wadia Institute of Himalayan Geology. At Kumaun University he was Professor of Geology (1976-95), Dean of Science Faculty (1977-80) and Vice-Chancellor (1981). Since 1995, he has been at the Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Bangalore as Professor of Geodynamics (1995-97), Bhatnagar Research Professor (1997-2003) and INSA Golden Jubilee Research Professor (2003-08). Presently, he is Honorary Professor at JNCASR, Distinguished Guest Professor at IIT Bombay and Honorary Visiting Professor at IIT Roorkee.
Academic and Research Achievements: Valdiya taught sedimentology, stratigraphy, tectonics, engineering and environmental geology at the Lucknow, Rajasthan, Delhi and Kumaun universities. He initiated and pursued research on natural hazards and landform changes in relation to neotectonism, geohydrology of mountain springs, palaeocurrent patterns and reconstruction of palaegoeography, and cyanobacterial-built stromatolites that led to assigning ages to the then undated rocks in the Himalayan and Vindhyan domains. His work on the characterization and genesis of magnesite deposits led to profitable mining and economic development of eastern Kumaun in Uttarakhand. In Southern Indian Shield, embracing Sotheastern Kanataka and adjoining Tamil Nadu and the Kanada and Malabar coastal belts, his studies relate to active faults, landform development, landscape reshaping and deflection, deviation, disruption and blockages of rivers in response to renewal of tectonic movements on active faults. He has written 110 research papers, authored 14 books, edited 9 books and contributed 40 articles in Hindi towards popularization of science.
Other Contributions: Valdiya was intimately involved in the conceptualization, establishment and development of Wadia Institute of Himalayan Geology at Dehradun, Central Himalayan Environmental Association at Nainital, GB Pant Institute of Himalayan Environment and Development at Almora, and Geology Department, Kumaun University. He also served as Member, Science Advisory Committee of the Cabinet/Prime Minister (1983-88) and as INSA Council Member (1984-86).
Awards and Honours: Professor Valdiya was awarded Padmashri (2007), Hindi Sevi Samman (Atma Ram Prize) (2007), National Mineral Award of Excellence (1997), DN Wadia Medal (1995), National Mineral Award (1993), SK Mitra Award (1991), SS Bhatnagar Prize (1976) and Chancellors Medal (1954). He was Pitambar Pant Environment Fellow of Department of Environment and Forests (1982-84) and UGC National Lecturer (1977-78). He was elected Fellow of the Indian Academy of Sciences, Bangalore, National Academy of Sciences (India), Allahabad, the Academy of Sciences for the Developing World, Geological Society of India, Geological Society of America (Honorary Fellow) and Geological Society of Nepal.