The Russian took 42 moves to finish the game against the World No 14 Indian Grandmaster, who tried all tricks up his sleeves but failed to save the game yesterday.
Earlier on Sunday, Harikrishna played an interesting game against local Grandmaster Teimour Radjabov.
The Hyderabadi used Ragozin defense but to his dismay his opponent surprised him with counter moves in the third round game. Harikrishna was quick enough to display his meticulous skills and turned the game into a half point in quick 28 moves.
The Hyderabadi will take on World No 10 and local favourite, Grand Master Shakhriyar Mamedyarov in round five later today.
Mamedyarov is currently enjoying pole position with three points.