The pacers were led by left-arm speedster Aniket Choudhary, who returned with exceptional figures of 5-11, in seven overs at the MBB Stadium here.
He was ably supported by another left-arm pacer T M Haq (3-1) and Deepak Chahar (1-17).
Such was Tripura's misery that only one batsman was able to score in double figures as all other batters faltered after their captain elected to bat.
In reply, Rajasthan made 218 to take a dominant 183- run first innings lead.
The visitors were in a spot of bother at 157 for 9, but then their no 10 Choudhary (30 not out) and Haq (37) got involved in a 61-run stand for the last wicket and ensured Rajasthan crossed the 200-run mark.
Tripura were 4 for no loss at close of play, still adrift by 179 runs.
Haryana ended the day at 10 for 1, losing their opener Ankit Kumar.
Haryana still trail by 160 runs.
At Bhubaneshwar, put in to bat, Odisha rode on opener Sandeep Pattanaik's 100 to reach 229 for 7 at close of play.
Pattanaik struck 10 fours and a six in his 194-ball knock.
At Kanpur, Uttar Pradesh, who chose to field, bundled out Assam for 175 and then ended the day at 64 for 1.
Brief scores: At Agartala: Tripura 35/9 (Neelambuj Vats 11 not out, Rajesh Banik 8, Aniket Choudhary 5-11, T M Haq 3-1) and 4/0 versus Rajasthan 218 (T H Haq 37, Aniket Choudhary 30 not out, M B Mura Singh 4-75).
At Rohtak: Services 170 (Vikas Hathwala 54, A A Bamal 30, Tinu Kundu 6-60) versus Haryana 10 for 1.
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