National Physical Laboratory, Hillside Road, New Delhi 1100122, India
Biography
D. Phil., D. Sc. Specialization: Radio & Space Physics.
Major work in the field of earth's near-space environment, through group based and space techniques. Work on cosmic radio noise for studying the upper atmosphere led to a series of discoveries in ionosphere, solar physics and cosmic rays. Over the last de
Shanti Swarup Bhatnagar prize (1968), K. S. Krishnan Memorial Lecture (INSA) (1975), Jawaharlal Nehru Fellow (1978 - 1980), C.V. Raman Award (UGC) (1980), Ficrci Award (1982), Om Prakash Bhasin Award (1987), C.V. Raman Medal (INSA) (1991), G.M. Modi Award (Gujarmal Modi Science Foundation (1992), Padma Bhushan (1989), Meghnath Saha Gold Medal (Asiatic Society) (1983), Sir J.C. Bose Memorial Lecture (1993), S.K. Mitra Centenary Medal (Indian Science Congress (1994), C.V. Raman Medal (1995). He is the recipient of the State honour: PADMA BHUSHAN, India.
Director, National Physical Laboratory, Delhi; Director General, Council of Scientific and Industrial Research, India; Secretary, Government of India, Department of Scientific and Industrial Research; Bhatnagar Fellow and Homi Bhaba Fellow
Over 200 research publications and a number of books. To mention a few "Advances in Space Exploration" (1979) (ed.), "Ionospheric Effects of Solar Flares" (author) (1980).
Fellow, Royal Society of London; Fellow of Indian National Science Academy; Indian Academy of Sciences and National Academy of Sciences; Fellow of Third World Academy of Sciences and of the International Academy of Astronautics; Past President of the National Academy of Sciences and Secretary, INAS (1979-1982); INSA Council Member (1994-1995). (Currently Director, Center for Global Change, IGBP, India.
Fellowship 
