Batting first, Pakistan put up a target of 137 runs which included 60 not out by captain Bismah Maroof and a 38 of 34 balls by Nahida Khan.
Earlier Pakistan had lost their opener, Muneeba Ali early in the innings, however, Maroof’s seven fours in the inning along with Khan’s three fours and one six helped put up a formidable 60-run second-wicket partnership.
In reply, Sri Lanka could only manage 113/9 in the 20 overs as off-spinner Nida Dar led the demolition job.
Dar took three of the top five Sri Lanka batters – Yasoda Mendis (25) and Nipuni Hansika (24), the openers, as well as Anushka Sanjeewani (11).
Pakistan and Sri Lanka have both now won two of their three games, but Sri Lanka are placed above Pakistan on the points table because of a superior net run rate.
Pakistan’s next game will be against Malaysia tomorrow.
Pakistan have twice reached the finals of Women’s Asia Cup.
Women’s T20 Asia Cup Tournament is being held in Malaysia, under the aegis of Asian Cricket Council.
Six teams including Pakistan, India, Bangladesh, Sri Lanka, Thailand and host Malaysia are participating in the event.