Medium-pacer Sandeep Warrier (3/27) was the pick of the bowlers with a three-wicket haul, while KR Sreejith (2/16), V Manoharan (2/27) and Prashant Parameswaran (2/40) claimed two wickets each.
Opting to bat, Tripura slumped to 57 for five before a 51-run stand between Yogesh Takawale (45) and MB Murasingh (24) for the sixth wicket helped the visitors cross the 100-run mark.
Only other batsmen who reached double figures were opener Rajib Saha (25) and Samrat Singha (17).
Brief scores:
Tripura: 136 for nine in 65 overs (Yogesh Takawale 45; Sandeep Warrier 3/27, KR Sreejith 2/16) vs Kerala.