Sangakkara's dismissal gave Pakistan some consolation after he added 60 for the third wicket with Mahela Jayawardene (unbeaten on 25) as Sri Lanka added 69 in the post lunch session after opting to bat in the morning.
Dinesh Chandimal was the other not out batsman without scoring.
Sangakkara flicked a straight drive into the hands of mid-wicket off paceman Junaid Khan, two balls after completing his half-century.
The left-hander could have been dismissed on 14 when he gloved a miscued sweep which Younis Khan caught in the slip off Rehman but Indian umpire Sundaran Ravi turned down a vociferous appeal.
Sangakkara took full advantage of the lucky escape, hitting Junaid for his fifth boundary to reach his 44th half-century but perished soon after.
Pakistan had removed both Sri Lankan openers Kaushal Silva (17) and Dimuth Karunaratne on either side of lunch.
Paceman Mohammad Talha, one of three changes in Pakistan's line-up, forced an edge off Silva in his second spell to leave Sri Lanka 31-1.
Silva -- who made 81, 95 and 58 in the series -- hit one boundary.
Left-hander Karunaratne hit two boundaries and a six before he edged left-arm spinner Abdul Rehman in the first over after lunch and was caught by Younis Khan in the slips.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
