Complex sentence: The Tripuri people through the Royal family of the Debbarma's ruled the state of Tripura for more than 1400 years till the kingdom joined the Indian Union in 1949.The Tripuri's constitute the weightiest section of the entire indigeneous population of the State of Tripura.
Split into simpler sentences: The Tripuri people through the Royal family of the Debbarmas ruled the state of Tripura for more than 1400 years till the kingdom joined the Indian Union in 1949. The Tripuris constitute the weightiest section of the entire indigenous population of the State of Tripura.