The young Hyderabadi had to fall back on the defensive as the game got complicated and agreed to a draw after 31 moves.
Harika slipped to the third position following the draw with 3.5 points after five games.
“My opponent surprised me in the opening. I was faced with a variation that I hadn’t played before. I could not get much out of the situation and had to settle for a draw,” Harika said.
Koneru Humpy the other Indian Grand Master in the fray, also played out a draw against Javakhishvili Lela of Georgia.
Harika will play against World No. 5 Anna Muzychuk of Ukraine on Friday.