Sikh organisations, including hardline groups, gathered to take part in 'Sarbat Khalsa', seeking to free Sikh institutions from political influence.
Brigadier Gagneja (retd) was attacked by bike-borne assailants on August 6 in Jalandhar.
The National Investigation Agency, which is probing the Pathankot terror attack case, on Thursday conducted searches at five places including office and residences of Punjab Police SP Salwinder Singh and his friends.
Akal Takht head Gurbachan Singh's customary address on the occasion of Diwali drowned in the din on Wednesday amid slogan shouting by Sikh hardliners, even as parallely "appointed" jathedar of Akal Takht also managed to address the gathering but was arrested soon after.
Lack of opportunities coupled with a desire to get rich quick in the West is fueling Punjab's human trafficking problem.