The brother of suspected ISI agent Akhtar Khan, now in police custody, was arrested on Monday also for his alleged links with the Pakistani spy agency, a senior Kolkata Police officer said.
The Special Task Force unit of the Kolkata Police arrested Zafar Khan from his Collin Lane residence in central part of the city this afternoon.
Zafar also travelled to Pakistan along with Akhtar in 1980s, the officer said.
Akhtar Khan (51), who had returned from Pakistan in 2008, was arrested by STF in the city on November 14 and various documents and fake Indian currency with a face value of Rs
1,72,500 were seized from him. He is now in police custody.