South Central Tibeto-Burman (also known as Kuki-Chin) forms a group of fifty languages spoken in the border area
of Bangladesh, India and Burma. Due to their geographic distribution, speakers of South Central (SC) languages are in close
contact with the superstrate languages, Bangla, Hindi and Burmese. The inevitable consequence of this longstanding contact on
lesser-known languages of this region is understudied, especially structural diffusions. This paper presents a detailed discussion
on relative-correlative (RC-CRC) construction in Hyow, a Southeastern SC language spoken by approximately four thousand people in
the Chittagong Hill Tracts of Bangladesh, where they are in close contact with Bangla and Marma (a dialect of Burmese). This
empirical study demonstrates how RC-CRC construction in Hyow is structurally and distributionally similar to those in IA
languages, taking a critical look at the existing literature on IA languages and using data therein for a comparative study. In doing so, this paper provides examples from Bangla, Hindi and Sanskrit, and refutes some of the observations made in previous scholarly works. This
paper also explores how they might have developed in Hyow, which otherwise uses a nominalization as native strategy for forming
relative clauses. Even though most part of this paper discusses the RC-CRC constructions in Hyow as a consequence of language contact, this paper presents new insights on RC-CRC constructions in Bangla as well comparing to other IA languages.