Hi Azam, As far as I remember there’s one in gangtok which is in center , just opposite Grand hotel, and name was Anjuman Islam Mosque, below is a link attached for picture. Google Maps Happy holiday. read more
The North East Presbyterian Church, Roman Catholic Church and Anjuman Mosque in Gangtok are places of worship for the religious minorities. The town has not been communist, having never witnessed any sort of inter-religious strife in its history. read more