March 31 marks half a century since the declaration of the Eravikulam-Rajamala Wildlife Sanctuary, which later became the Eravikulam National Park Related posts: India should ensure welfare of Hindus in Bangaldesh: RSS chief Mohan Bhagwat Maharashtra cabinet accepts panel report on SOP for granting Kunbi-Maratha certificates Congress amended Constitution to retain power, tried to alter its basic structure, say BJP leaders Ministry of Defence signs ₹2,906 crore radar contract with BEL for the Indian Air Force