A scientist working at the BrahMos Missile Research Centre (BMRC) in Maharashtra's Nagpur was arrested on Monday on charges of spying for Pakistan's intelligence agency ISI and other countries, sources say. Nishant Agrawal has worked in the technical research section of the missile centre for four years. He studied at the National Institute of Technology in Kurukshetra, was a gold medalist and is described as a very bright engineer. According to reports, he married last week.