Lisa Daley (7th minute) scored a field goal to hand Wales an early lead before Sian French (26th) converted a penalty stroke in the second quarter to double the advantage.
The Indians struck back with skipper Rani (34th, 41st) scoring a couple of goals in the third quarter.
Rani struck shortly after half-time off a penalty corner.
She found the equaliser shortly before the end of the quarter with a field goal.
The fourth quarter was a hard-fought, end to end affair as both teams pushed for the winning goal.
Wales clinched the issue in the closing minutes when Natasha (57th) scored a field goal.