Passengers on long-haul trains will soon be saved from the stink from the coach toilets with Railways kicking off a green initiative in the State on Thursday to introduce “odourless” and hygienic bio-toilets aboard.

Train no. 16316/16315 Kochuveli-Bangalore Express has become the first train from the State and in Southern Railways to have bio-toilets on all compartments. The rake has arrived at Kochuveli.