Playing his first game in the championship, Sitwala came out all guns blazing to reign supreme on the green baize at the Megapool Academy in Dwarka.
PSPB's Sitwala put on display fine potting skills to beat Delhi's Harpreet Singh 3-0 on the sixth day of the championship.
Singh tried his best to create an upset by showing good fighting skills in the first and second frames respectively but it was not the case to be as Sitwala's extensive playing experience held him in good stead.
Kothari was in his elements today as he beat Turki 61-6 69-37 60-19.
The championship saw yet another upset in the form of Uttar Pradesh's Kankan Shamsi who went down fighting to Punjab's Deepinder Singh in a five-frame marathon.
The match lasted for four hours, the longest in the short history of the tournament, as the fortunes fluctuated from frame to the other. Such was the intensity of the play that the three frames were decided on the black ball.