Jamuna Gajmer was born in Chirang, Daleni Bhutan in 1972. She was married to Yam Bahadur Gajmer. She believed in Lord Jesus Christ at the age of 18 in 1990 in Thimphu Bhutan. After exile in refugee camp with lots of ups and down, both Jamnuna and Yam did not forsake the calling of Lord to serve Him.

Mahima Church was establish in Beldangi-2 Refugee Camp in 2003 where Pastor Yam lead the congregation and Jamunu Gajmer was there to help him in the ministry of Lord in preaching, prayer, fellowship and Lord’s supper. After moving to Canada, family of Jamuna started fellowship at Jesus First Assembly Church in the heart of Toronto. Now both Jamuna and Yam serve the Lord from London Ontario in the same church: Jesus First Assembly Church.