The Mumbai Anti-Terrorist Squad (ATS) arrested a member of the insurgent Babbar Khalsa International group from a Mumbai suburb on Saturday.
"We had information about Nishant Singh Karam Singh, who was coming from Nanded (in Maharashtra). We arrested him and seized a double barrel shot gun with 24 rounds, two .32 pistols and 40 rounds of ammunition," said ATS Chief Rakesh Maria.
Maria said that a Punjab Police team would come to Mumbai to question Singh.
On June 13 the police had arrested Manjinder Singh Manna and Balvinder Singh Bagga of BKI in Batala town of Punjab.