Harmeet, who made a flying start to his campaign winning both his matches on the opening day of the USD 150,000 tournament, beat Tzu-Hsiang Hung of Taipei in straight games to maintain a clean slate in the qualification stages.
Sathiyan, who came into the day on the back of two impressive straight games victory continued from where he left off and dished out another dominating performance to beat Siu Hang Lam of Hong Kong to sail into the Round of 32.
Robinot Quentin of France beat Utkarsh Gupta of India 4-1 to advance into the final draw while Spaniard Robles Alvaro beat Sudhanshu Grover of India 4-0 to qualify. Samuel Walker of England and Azzuku Can of France also made it to the next round after registering wins over India's Jubin Kumar 4-1 and Subhajit Saha 4-0 respectively.
With 10 players have already qualified for the main draw, five more places will be up for grabs with the second placed paddlers from each group clashing for one more shot at a berth in the next round.
In the Under-21 women's singles competition, Sreeja Akula of India qualified for the semifinals by beating the Taipei paddler Po-Hsuan Lin 3-2. She is India's lone representation in the last four and will look to seal a spot in the finals when she faces Minnie Soo Wai Yaam of Hong Kong later in the evening.