Poonam Raut scored a gritty 25 off 28 balls to take India to a modest score of 81 (all out) in 20 overs.
Harmanpreet Kaur (20) and Reema Malhotra (18) were the only other players to reach double digits.
Spinner Sana Mir was the pick of the Pakistan bowlers, taking four wickets for 13 runs. The Indians had a torrid time picking her leg spinners.
In reply, Pakistan were bowled out for 63 in 19.1 overs.