He is closely followed by Swapnil S Dhopade and Gusain Himal, with 5.5 points each.
Dhopade scored over Akshat Khamparia (4.5 points), while Gusain defeated Dinesh Sharma (4 points) in sixth round ties being played at Mount Litera School International in suburban Bandra.
In other upsets during the sixth round, International Master Anup Deshmukh went down to Matta Vinay Kumar, while International Master Himanshu Sharma was held to a draw by talented Bharambe Bhavik.
Three rounds remained in this nine round Swiss tournament that has a total prize money of Rs 7.5 lakhs with the champion getting richer by Rs 1.5 lakhs.
More From This Section
In the international event for juniors held concurrently, FIDE Master Mohammad Fahad Rahman of Bangladesh (4.5 points) played out a draw with Gukesh D (4.5 points) to share the lead after the fifth round.
Results: Seniors (Round 6): Stany GA (6) bt Shardul
Gagare (4.5), Akshat Khamparia (4.5) lost to Swapnil S Dhopade (5.5), Himal Gusain (5.5) bt Dinesh K Sharma (4), Himanshu Sharma (4.5) drew with Bhavik C Bharambe (4.5), Anup Deshmukh (4) lost to Matta Vinay Kumar (5), Gukesh D (5) bt Praggnanandhaa R (4), Audi Ameya (3.5) lost to Nitin S (4.5), Chirag Satkar (3.5) lost to Ravi Teja S (4.5), Ojas Kulkarni (3.5) lost to A L Muthaiah (4.5), Likhit Chilukuri (3.5) lost to Krishna Teja N (4.5).