India, Aug. 11 -- A railway employee has drawn attention to an unusual reason behind poor cooling in air-conditioned train coaches after showing an AC duct packed with garbage thrown inside by passengers.

In a video shared on Instagram, a railway AC maintenance worker opened a duct inside a train coach to inspect the air outlet. What came out was a pile of waste that had accumulated inside the duct, including used tea cups, chips packets, toffee wrappers and other pieces of garbage.

The employee used a screwdriver to open the duct before reaching inside and pulling out more waste. He explained that passengers travelling on upper berths sometimes remove or damage the small grille covering the air outlet and use the opening to dispose of ...