Left-hander Perera reached his century after a 164-run stand for the first wicket with Dilshan, who became only the 11th batsman and the fourth Sri Lankan to compile 10,000 one-day runs.
Skipper Angelo Mathews hammered an unbeaten 70 and Milinda Siriwardana clubbed 52 not out off 26 balls as Sri Lanka plundered 136 runs in the last 11 overs to record their highest total against Pakistan.
The previous best by the Islanders against Pakistan was 349-9 in Singapore in 1996.
Perera, whose only other one-day ton came against Bangladesh last year, smashed nine boundaries and four sixes before he was run out in the 34th over.
The flamboyant Dilshan reached the 10,000-run landmark in his 319th match when he took a single off Shoaib Malik to move to 55, before he was run out for 62.
The 38-year-old now has 10,007 runs, joining compatriots Kumar Sangakkara, Sanath Jayasuriya and Mahela Jayawardene in a coveted list headed by Indian great Sachin Tendulkar, who had 18,426 ODI runs.
The hosts made three changes from the last match, dropping sling-arm fast bowler Lasith Malinga, seamer Nuwan Pradeep and Sachith Pathirana.
They were replaced by off-spinner Sachithra Senanayake, all-rounder Thisara Perera and fast bowler Lahiru Gamage.
Pakistan retained the same team.
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
