Malankara Orthodox Church is an ancient Church of India and it traces its origin to as far back as A. D. 52 when St. Thomas
one of the Disciples of Jesus Christ came to India and established Christianity in the South Western parts of the sub-continent.

The St. Thomas Christians or the Indian Christians exist at present in different churches and denominations.
But a major section of the parent body of St. Thomas Christians which has maintained its independent nature
constitutes the Orthodox Church under the Catholicate of the East with Headquarters at Devalokam, Kottayam.
http://www.houstonstthomas.org/stthomas/default.html