A total of 54 trains on the Ambala-Amritsar route were cancelled on April 20 as farmers squatted on tracks at the Shambhu railway station in Punjab's Patiala district for the fourth day, officials said.
The protestors have been demanding the release of three farmers arrested by the Haryana Police during the ongoing stir.
The protest has affected the movement of 380 trains in the last three days, causing inconvenience to passengers, they added.
