In the final round against city-based WGM Mary Ann Gomes, Swapnil held his nerve in a sharp tactical end-game to emerge winner with 6.5 points.
Second seed IM Swayams Mishra also scored 6.5 points with a final round win against WGM Padmini Rout, but had to be content with the runner-up title on progressive points.
Former world U-12 champion, Sayantan Das and Prantik Roy both scored 5.5 points each and had equal progressive points, but the former was adjudged third on account of his higher seeding.
WGM Padmini of Orissa finished the tournament on 5 points and was placed fifth.