Yasir, who has played a single T20 international way back in 2011, sending down just one over in Zimbabwe has been in prime form since his comeback to the Test and ODI sides since last September.
The selectors have also named uncapped left am pacer Zia ul Haq as reserve for Wahab Riaz who is still recovering from a hand injury he sustained during the Test series in Sri Lanka last month.
Chief selector Haroon Rasheed said that Wahab had shown good progress in rehab and was most likely to play the T20 matches.
The selectors also surprisingly have picked batsman Umar Akmal in the T20 squad after they had dropped him for the ODI series against Sri Lanka for not showing up for a conditioning camp prior to the announcement of the ODI squad.
The chief selector had roundly criticized the attitude of Umar and made it clear that if he wanted to play for Pakistan he would have to change his attitude.