Sri Lanka, led by Dasun Shanaka, won the Twenty20 match against Pakistan after a gap of six years.
They won the first match of the Twenty20 tournament by 64 runs.
Pakistan won the toss and invited Sri Lanka to bat first. Sri Lanka scored 165 runs for the loss of 5 wickets in their allotted 20 overs.
Dhanushka Gunatilleke top-scored with 57 off 38 balls with one six and eight fours.
Bhanuka Rajapakse scored 32 runs in 22 balls with two sixes and two fours.
Mohammad Hasnain took three wickets.
Chasing a target of 166, Pakistan were bowled out for 101 in 17 overs.
Nuwan Pradeep took 3 wickets for 21 runs while Isuru Udana took 3 wickets for 11 runs.
Sri Lanka won the first Twenty20 match by 64 runs.
Sri Lanka won their last Twenty20 match against Pakistan in 2013.
The second Twenty20 match will be played tomorrow at 7.00 pm.