Alladiya Khan Current Affairs, GK & News

Current Affairs : August 23, 2011

World’s longest periscope A 10 m long indigenously developed periscope for a nuclear reactor at the Indira Gandhi Centre for Atomic Researc (IGCAR) at Kalpakkam near Chennai was dedicated to the nation The periscope is the longest in the world Costing around Rs 3.9 crore , the periscope was handed over to Bharatiya Nabhikiya Vidyut ..