Mainstay Koneru Humpy was rested for tougher battles ahead while D Harika, Tania Sachdev, Padmini Rout and Soumya Swaminathan scored fine victories to keep the team in contention for a medal in the premier team event.
On a tough day for higher seeds, overnight joint leaders Georgia were defeated 1-3 by the Vietnamese while hosts Turkey sprang a major surprise and defeated Ukraine 2.5-1.5.
The Russian women also could only manage a 2-2 draw with Greece that opened its account in match points after two losses.
Chinese girls, meanwhile, continued with the demolition act and their 4-0 drubbing of the Armenians put them in sole lead with six match points.
India and Russia [ Images ] share the second spot with five match points but the Indians are ahead at this juncture with 9.5 game points compared to Russia's 7.5 points.
Georgia and Vietnam are not far behind the leaders with four points apiece while Armenia and Turkey share the sixth spot with two points each.
Ukraine, with just a lone draw with India in the opener, stand eighth alongside Greece while South African eves are yet to open their account in this 10-team round-robin tournament.
Results round 3: India (5 points) beat South Africa (0) 4-0 (Cecile Van Der Merwe lost to D Harika; Tania Sachdev beat Anzel Solomons; Denise Frick lost to Padmini Rout; Soumya Swaminathan beat Lauren Van Niekerk); Armenia (2) lost to China (6) 0-4; Turkey (2) beat Ukraine (1) 2.5-1.5; Greece (1) drew with Russia (5) 2-2; Vietnam (4) beat Georgia (4) 3-1.