Haris Rauf returned strongly in the last over and repaid skipper Imad Wasim's faith by holding his nerve.
Northern defeated Balochistan by a comfortable margin of seven wickets as they were helped by a century stand between Ali Imran and Rohail Nazir
The seven-wicket loss for Central Punjab means the Babar Azam-led side bow out of the competition with just one win in five games.
Mohammad Hafeez and Zahid Mehmood took four wickets each as they spun a web around the Sindh batsmen in their pursuit of the 149-run target.
Muhammad Musa snared three wickets in his opening spell after which Khyber Pakhtunkhwa found it hard to recover.
The 11th match between Central Punjab and Southern Punjab was abandoned without a ball being bowled.
Sohail Akhtar's attacking 36-ball 63 helped Northern register a daunting total before their bowlers throttled Sindh's batting lineup.
Imam-ul-Haq and Haris Sohail made invaluable contributions to help Balochistan bag a comfortable win over Southern Punjab
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