Dhillon told reporters that IPS Section 304 slapped against the Nihang could be converted into Section 302 (murder) following further investigation.
Amritsar Rural senior superintendent of police Satinder Singh said seven of Amritpal's associates have been arrested under the provisions of the Arms Act.
Prima facie, the student was facing some personal issues, as was suggested by a suicide note left by him, a police official in Phagwara said.
The Punjab police on Friday arrested the caretaker of a Kapurthala gurdwara for the lynching of a man and he has been charged with murder, a senior official said on Friday.
Twelve children were among 13 killed when a brick-laden truck collided with their school van in Jalandhar district in Punjab on Monday morning. The children, students of a private school, were headed for the school when the mishap occurred near Jaheera village in Lambhra, close to Nakodar, a senior police official said.
The police said the abductors came in a car without a number plate and forcibly lifted Abhi Verma, alias Harry, a student of class IX, near Shimla Pahari chowk.