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
Shafiq stars with rearguard effort but Australia take honours on opening day
'Have to get used to the bounce at Brisbane' – Smith
Pakistan set to hand Naseem maiden Test cap against Australia
'It should not become a regular scenario' - Kohli has his say on pink-ball matches
Pakistan beat India in the semi-final of the Emerging Asia Cup
Massive middle-order collapse dents Pakistan’s progress
'We are motivated to make history by winning Test series in Australia' - Azhar Ali
2019 BPL Draft: Seven Pakistani players make the cut
'Every board is different' - Smith reacts to Pooran's ball-tampering ban
Wasim Khan confident about future tours to Pakistan