Tickets for the Pongal special trains departing from Tambaram on the 12th and 14th of this month were sold out shortly after reservations opened. Currently, sleeper class compartments were not fully booked on the Tambaram-Nagercoil special train on the 14th and the Chengalpattu-Nellai special train on the 9th. Let’s see which other trains also had vacant seats.