Playing his sixth and concluding tie in the group, Habib, who suffered just a solitary loss to India No. 5 Faisal Khan, overcame Arvind Kumar 3-1 for his fifth win that helped him top the group.
Jain, who endured two losses including a 2-3 defeat to Kumar earlier where he fired a break of 102, beat Raj Khandwala of CCI 3-1 for his fourth win to finish second in the group.
India No. 2 and Asian Championship bronze medallist Kamal Chawla of Railways completed a clean sweep, winning all his six ties to top Group B. The Bhopal based cueist prevailed over Manan Chandra 3-2, winning the decider on the blue in his concluding tie.
Title contender Aditya Mehta qualified from Group A after recording his fourth win from five outings. Mehta endured a stiff challenge from Sourav Kothari before snatching a 3-2 win after trailing 0-1 and 1-2.
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Results: Snooker Round Robin: A: Nikhil Ootam (CCI) bt Dilip Kumar (Rlys) 3-1; Aditya Mehta (PSPB) bt Sourav Kothari (PSPB) 3-2; Sourav Kothari bt Nikhil Ootam 3-0; Nikhil Ootam bt I.H. Manudev (Ktk) 3-0.
B: Kamal Chawla (Rlys) bt Laxman Rawat (PSPB) 3-1; Kamal Chawla bt Hasan Badami (CCI) 3-0; Nitesh Madan (Rlys) bt Malkeet Singh (CCI) 3-0; Kamal Chawla bt Manan Chandra (PSPB) 3-0.
C: Rupesh Shah (PSPB) bt Dharmender Lily (Pun) 3-2; Siddharth Parikh(Rlys) bt Kekoo Nicholson (CCI) 3-0; Pushpender Singh (Rlys) bt Nishant Dossa (CCI) 3-1; Sundeep Gulati (Del) bt Kekoo Nicholson 3-0; Rupesh Shah bt Nishant Dossa 3-0; Sundeep Gulati bt Siddharth Parikh 3-1.