The J&K team entered the last eight stage by virtue of their first innings lead, which earned them three crucial points. They ended tied on 28 points with Goa but qualified on the basis of their marginally better points quotient.
J&K had a quotient of 1.006 as against Goa's 1.005 after the valley team ended the fourth and final day at 87 for two in a chase of 228.
J&K will now square off against Punjab at Baroda from January 8.
It was a remarkable achievement for the J&K team considering that many formidable sides such as seven-time champions Delhi, two-time winners Rajasthan, last year's finalists Saurashtra and Gujarat failed to make it to the knockout stage.
The hosts began the day at a solid 103 for two but were all out for 272 as spinner Perveez Rasool claimed seven wickets at the expense of 87 runs.
After that skipper Yogesh Takawale (28) and Manisankar Murasingh (37) resisted the J&K attack for some time but eventually they were bundled out for 272 runs on the board.
The visitors then lost Adil Rishi (1) and Ian Dev Singh (9) cheaply but Bandeep Singh (37) and Perveez Rasool (35) batted well after that and easily drew the game.
Brief Scores:
Tripura 280 and 272 in 103.5 overs.(Abhijit Dey 63, Kaushik Acharjee 35; Perveez Rasool 7/87).
