Abhijit Menon-Sen
ubi@amenonsen Looks like a Sarika sp., I can see what looks like its 'wiper' near the opening of the shell. It can extend this tentacle-like appendage to clean its shell. That's why this genus always has a very shiny shell.
@ubi Wow! That's amazing. I wish my car could do that.
(Aside: "Sarika" is a slightly less-than-common woman's name in India.)