Smriti, who finished with a total score of 217 (79, 70, 68), stunned overnight leader Ankita Tiwana to bag the winner's cheque.
Ankita had to settle for the runner's up position trailing Smriti by one stroke. Vani Kapoor finished at the third position carding 219 (72, 74, 73) at the end of the final round.
Smriti had a modest start to her round with three birdies on the 2nd, 5th and 9th holes in her front nine. She consolidated her lead with three more birdies on the 10th, 15th and 16th holes in her back nine.
Ankita had a sweet start with a birdie on the 1st hole but she could not hold on to her start faltering with a bogey on the 3rd hole.
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She finished with another birdie on the 4th hole and a double bogey on the 16th hole.
Vani final round consisted of bogeys on the 1st and 6th holes and a single birdie on the 2nd hole.
Chandigarh's Saaniya Sharma finished at the fourth place with a total score of 224 (79, 70, 75), while Kolkata golfer Neha Tripathi finished at the sixth position with a total score of 225 (78, 73, 74).