Nagaon (Assam): A man has been arrested on Friday for his alleged involvement in the grenade blast near the Guwahati Central shopping mall on May 15, the police said.

"One Indra Mohan Bora has been picked up by Nagaon police on Friday in relation with grenade lobbing incident in Guwahati. It has been found that he visited the spot and did a recee. He also confessed to being in touch with some ULFA leaders through social media," said Shankar Brata Raimedhi, Superintendent of Police, Nagaon.