The four young men from Kalyan who joined the jihad in Iraq are likely to provide technical support to the Internet-savvy ISIS.
Arif Majeed (23) from neighbouring Kalyan, who until now was believed to have been killed while fighting for militant group ISIS in Syria, was on Friday night arrested hours after he landed in Mumbai.
Director of Intelligence Bureau Syed Asif Ibrahim on Sunday said effective intelligence sharing with neighbouring countries like Nepal, Myanmar, and Malayasia, Saudi Arabia would go a long way in helping the country tackle the threat from global terror groups like the Al Qaeda and ISIS.