D'Souza's win over Mumbai city rival Hardik Vyas in straight frames helped him top the group with two straight wins, where Karan Chugh of the host club also registered two wins from as many ties to make it to the knock out by finishing second behind D'Souza.
D'Souza was joined in the last 16 by suburban Khar Gymkhana trio Laxman Rawat, Ishpreet Singh Chadha and Pawan Kohli, Jaiveer Dhingra of PJ Hindu Gymkhana, Kabil Badami of Bombay Gymkhana and Zubin Leninwala of Indian Snooker Academy (ISA).
Pranit Ramchandani of Chennai kicked off his campaign in the competition with a 3-0 win over Vishesh Sahgal of NSCI in Group H.
Pune lads Rajwardhan Joshi and Nimish Kulkarni of PYC Hindu Gymkhana lost their second group ties and their progress rests on the concluding ties on the morrow.