Singh refers to Section 149 of BNSS which provides for use of armed forces to disperse assembly.

“Every such officer of the armed forces shall obey such requisition in such manner as he thinks fit, but in so doing he shall use as little force, and do as little injury to person and property, as may be consistent with dispersing the assembly and arresting and detaining such persons,” he reads.

Hitting on head can never be permitted under this section. They are supposed to preserve cctv: Singh