One person was arrested and around 40 others, mostly unidentified, were booked for clashing with security forces and pelting them with stones at the train accident site here, police said Sunday.
Earlier in the day, a police commando and a photojournalist were injured when protesters pelted stones and clashed with security personnel who removed them from a rail track where 59 Dussehra revellers were mowed down by a train on Friday.
A case was registered under relevant sections, including 307 (attempt to murder) of the IPC, police said.
They said protesters were residents of Joda Phatak area and they pelted stones at the moving train when police tried to stop them.
The protesters were raising slogans against the state government and demanding resignation of Punjab minister Navjot Singh Sidhu.
The Punjab police has deployed its personnel, including commandoes, to manage the crowd. The Rapid Action Force was also present in the Joda Patak area, officials said.