typical set-up for these tanks -- sand, pile of dry grass, water dish, light bulb. This one is for a copper-headed trinket snake ([i]Coelegnathus radiatus[/i]), which is just visible in the grass directly behind the light bulb.
For everything else at the zoo, see my review here:
http://www.zoochat.com/254/visit-assam-state-zoo-guwahati-10-a-358287/
