Dempo led 2-1 at the interval.
Sesa Football Academy had already qualified from this group for the All India round.
Sporting Goa decided to give opportunities to squad players who had not played in previous games and there were seven new eager faces added to the starting line-up.
Dempo opened the scoring in the 23rd minute, when Turnard Fernandes controlled a cross and sent the ball into the right hand corner of the goal.
Just when the game looked to be slipping away from Sporting Goa, Pandurang Naik smacked a shot from the edge off the box, which took a nasty deflection as it pierced the back of the net, to pull a goal back deep into injury time of the first half.
Changing over, Sporting Goa washed away the early lingering nerves and played with the intention to make a game of it.
Seven minutes later, Sporting Goa's Arnold Fernandes was coolness personified as he blazed the ball from outside the box, to find what proved to be the match winner.
A determined Dempo looked to finish with a flourish, but by this stage the Flaming Oranje was home and dry.
