In a keenly contested second round match, Dossa was engaged in an absorbing tussle with Cherag Ramakrishnan of Colaba before scraping to a 3-2 victory in five close frames, a media release said.
Ramakrishnan started positively by pocketing the opening frame before a resilient Dossa replied by narrowly winning the next two to take a slender 2-1 lead.
The fourth frame witnessed another tight contest which Ramakrishnan managed to win by a thin margin to level scores and take the match to the fifth frame.
In contrast, Shah quickly found his rhythm and potted confidently to breeze past B Keshwa of the Goregaon Club in three straight frames in a one-sided first round match.
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Keshwa struggled from the start and Shah seized the situation as he pounced on every opportunity to keep the scoreboard ticking before completing a fluent 54-17, 60-9, 53- 46 victory, it added.
Meanwhile, the experienced Siddharth Parikh of Railways (Rly) picked up steam immediately and raced to a smooth 3-0 win against Rajwardhan Joshi (ECC) in another second round encounter.
Results - 2nd round:Viren Sharma (BSAA) bt Puneet Thakkar 3-2 (52-38, 19-52, 46-60, 53-41, 51-32); Siddharth Parikh (Rly) bt Rajwardhan Joshi 3-0 (74-38, 62(50)-7, 73-63); Nishant Dossa (CCI) bt Cherag Ramakrishnan (Colaba) 3-2 (41-55, 52-45, 58-40, 57-52, 57-37); Sidraj Shah (CCI) bt B.
Keshwa (Goregaon Club) 3-0 (54-17, 60-9, 53-46); Nikhil Saigal (Khar Gym) bt Shahyan Razmi (Radio Club) 3-1 (68-45, 71-37, 42-58, 60-31); Paras Gupta (UP) bt Anees Jumani (Radio) 3-0 (68-32, 57-54; 77-15).