Punjab dismissed Jharkhand for 104 after winning the toss and chased down the modest target in 17.3 overs.
Opener Pargat Singh ensured his team reach home comfortably with other contributions coming from Gitansh Khera (22) and Harbhajan Singh (10).
It was Punjab's second win in three games.
Brief scores: Jharkhand 104/9 in 20 overs (Virat Singh 41; Siddharth Kaul 2/31).
Punjab 105/3 in 17.3 overs (Pargat Singh 60 not out; Prakash Seet 2/31).