Sidhu Musewala was shot dead on Sunday in Jhawarke village of Mansa district of Punjab.
Punjab Chief Minister Bhagwant Mann said. "The horrific murder of Sidhu Musewala has shocked me. There will be no exception.
My heartfelt condolences and prayers go out to his family and followers around the world.
"I request everyone to maintain their restraint."
According to the police, Sidhu Musewala was seriously injured when unidentified persons opened fire on him.
Mr. Musewala was one of those whose security was recently cut off by the Punjab Police.
He had four police gunmen, two of whom were fired.
Sidhu Moosewala embroiled in controversy for allegedly promoting 'gun culture' and violence in his songs
Contested from Mansa constituency of Congress party in the 2022 assembly elections.
Musewala was booked under various sections of the Indian Penal Code and Arms Act by the Punjab Police.
In many cases it was accused of glorifying gun culture.
Punjab Police including current and former politicians, heads of religious groups and police personnel
Withdrew or reduced the security of at least 424 people.