The veteran all-rounder top-scored for the tourists with 38 runs before scalping thrice in their 45-run win over Sri Lanka.
Having won the first T20I by six wickets, host determined to wrap up series at Premadasa Stadium on Thursday.
Kusal Perera struck a quick-fire half century to steer Sri Lanka to a six-wicket win over Bangladesh in the first of their two-match T20 series in Colombo on Tuesday
Mashrafe Mortaza announced on Tuesday his retirement from T20I after he completes the ongoing two-match series against Sri Lanka.
Thisara Perera cracked a 40-ball 52, while Kulasekara picked up four wickets to ensure a 70-run win for Sri Lanka, and series drawn 1-1.
Bangladesh targets rare away series win against Sri Lanka with momentum on its side.
Heavy rain washed out the second one-day international of a three-match series between Sri Lanka and Bangladesh in Dambulla on Tuesday.
Sri Lanka were bowled out for 234 after Tamim scored a brilliant century to give Bangladesh 1-0 lead.
After success in Tests the Bangladesh look to tame host in One-day international too.
Top-ranked Smith attains career-best rating while Pujara rises to career-high second place.