28-year-old left-arm pacer Choudhary, who had picked up a five-wicket haul in the first innings, shone in the second innings too to return with exceptional figures of 5-40 as Rajasthan bundled out Assam for 174.
Choudhary ended the match with excellent figures of 10-78 (5-38 and 5-40).
This is Rajasthan's fourth win of the season.
After bundling out Assam for 108 in their first essay at the Sawai Mansingh Stadium here, Rajasthan had posted 325 in their first essay to take a healthy 217-run first innings lead, with skipper Mahipal Lomror hitting a stroke-filled 133.
Assam, who began the penultimate day at 109 for 3, slumped to 174 all out in their second essay, as Choudhary and other pacers T M Haq (2-44) and Nathu Singh (2-28) wreaked havoc.
For Assam, only Gokul Sharma (77) and wicket-keeper Kunal Saikia (49) delayed the inevitable.
But after the duo fell, it was smooth sailing for the visitors.
At Ranchi, Odisha have a task at hand as they need another 179 runs to win with seven wickets in hand against hosts Jharkhand.
Brief Scores: At Jaipur: Rajasthan 325 beat Assam 108 and 174 (Gokul Sharma 77, Kunal Saikia 49, Aniket Choudhary 5-40) by an innings and 43 runs.
Rajasthan 7 points, Assam 0 points At Jammu: Jammu and Kashmir 290 and 111 (Ahmad Omar Banday 19, Saurabh Kumar 5-28, Yash Dayal 4-26) lost to Uttar Pradesh 188 and 218/4 (Suresh Raina 66 not out, Rinku Singh 42 not out, Parvez Rasool 2-63 by 6 wickets.
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