The third and final match is scheduled to be played on Sunday in Lahore's Gaddafi Stadium.
Sri Lanka coach Nic Pothas urged the tourists to show more character after they lost the first match on Thursday, but they capitulated from 106-1 to 124-9 a day later after a half-century from Danushka Gunathilaka (51) at the top of the order.
The Pakistan Cricket Board, in collaboration with the ICC, last month organized a three-match T20 worldwide series against a World XI, led by South Africa's Faf du Plessis, at Gaddafi Stadium.
Before this Pakistan has beaten England to gain the Number two spot. The way the Pakistani team is playing indicates that soon Pakistan will be able to beat New Zealand and become the best T-20 team in the world.
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Both Pakistan and Sri Lanka field unchanged teams as Sarfraz Ahmed opts to bowl in the second T20I.
Khalil was hailed as a national hero for getting the team to the secured stadium and he was rewarded by the Pakistan government and invited to Sri Lanka where he was given a medal of bravery and a reward of $35,000.
But several Sri Lanka players won't be there. Pakistan have already won the first game and can clinch the series on Friday if they win the second game. "What's important to me is that we are hosting an global match and show the world that it's safe to play in Pakistan", said Ghulam Abbas, a college student.
Pakistan is expected to host West Indies next month for a three-match Twenty20 series in Lahore.