An Aam Aadmi Party sarpanch, Harpinder Singh of Thathian Mehta village, was shot dead by unidentified gunmen during a marriage function in Tarn Taran district.
Police said an AK-47 was used in the attack; Singh died on the spot while his cousin was seriously injured.
The incident comes weeks after another AAP sarpanch was killed in a similar manner, even as the Punjab government continues its anti-gangster drive.
