1990 PRAKASH, Satya (b. 1929) Ph.D.,F.N.A.,F.A.Sc., Formerly Senior Professor, Physical Research Laboratory, Navrangpura, Ahmedabad-380009; Res. 395, Saraswati Nagar, Near Azad Society, Ahmedabad – 380015; Tel: (079) 26741823(R), 09429205470(M); Email: ; Sp. Aeronomy/Space Physics.