Students raised slogans on the need to prevent sexual abuse against children as such crimes would have a lasting adverse impact on them.
"Approach the child helpline 1098", a placard read.
Slogans explaining child protection laws and the need for better awareness among parents were raised.
State Law Minister S P Velumani flagged off the rally.
"Although there are laws to protect children against sexual abuse, there is no adequate awareness among the public," Vice chancellor Prof Vangamudi said.