Coastal marine Environmental Radioactivity Measurement Programme in India assume significance in view of massive expansion of nuclear power plants in the Asia Pacific region and to establish benchmark of specific radionuclides in coastal marine environment. In the present study Marine Environmental Surveillance was carried out along the east and west coast of India. Fallout out 137Cs and naturally occurring 226Ra, 228Ra were assessed by in house developed in-situ pre-concentration method using copper ferrcyanide and manganese di-oxide coated filter cartridges. 137Cs activity concentration mapped for Indian coastal region varied from 0.30 to 1.25 Bq m-3 and these were compared with 137Cs levels of Asia Pacific Region. The marine surveillance data also indicates no input from any source including operation of nuclear power plant in east and west coast of India.