Pastor Koshy was born in Pathanapuram, Kerala, India, to the late Pastor V. T. Koshy and Mariamma Koshy. After two years of college education, answering the special call of God, Rev. Koshy followed in the footsteps of his father and grandfather, late Pastor T. G. Oommen, the former general president of The Indian Pentecostal Church of God.
Rev. Koshy completed his theological studies and mission training form Salem Bible School, Kottayam and Hebron Bible College in Kumbanad and also Bethel Bible Institute, Delhi under the mentorship of prominent Bible Scholars and pioneer leaders of the Pentecostal movement in Kerala, such as Pastors K. E. Abraham, T. G. Oommen, P.M. Philip and C. K. Daniel.
After a short period of mission work in Thodapuzha, Kerala, with a vision of the north Indian mission fields, Rev. Koshy went to North India. For almost 20 years he was planting and pastoring churches in the North Indian States including Indian Pentecostal Churches (Boaro Steel City, Bihar) IPC Gandhidham (Gujarat), IPC Chembur (Mumbai) and Dombivilli (Maharashtra).
In June of 1988, Rev. Koshy was appointed as the Pastor of I. P. C. Hebron, Houston, Texas, and ministered there until June 1994. In July, 1994 he was invited by India Christian Assembly, New York, to be their pastor. After nine years of successful ministry in New York, he moved to Chicago, Illinois to be the pastor of I. P.C. Gilgal and ministered there for two years. In July of 2005, he took charge the ministership at I. P. C. Tabernacle until 2008.
Since August 2008, Pastor Thomas V. Koshy, his wife Aleyamma joined the Dallas Pentecostal Church family. Pastor has been blessed with two children, Grace and Abraham. They both live and serve the Lord in Dallas with their families. At present Pastor Thomas V. Koshy is serving as the Minister in Charge of Dallas Pentecostal Church.
For almost 45 years he has been laboring the vineyard of the Lord. He is one of the senior ministers of the Indian Pentecostal Church in the United States. He held many responsible positions. He was the vice president of IPC, North American Eastern Region and served as the convener of the 9th IPC Family Conference held in Dallas in 2008. At present he is the President of IPC Midwest Region.