I'm not a religious person. Hinduism is supposedly not religion but a "way of life"[1]. I really don't want to get into to the specificity.

http://en.wikipedia.org/wiki/Hinduism#cite_ref-Klostermaier_... [1]

If you assume it's a religion, try this. http://en.wikipedia.org/wiki/Hinduism (Ctrl/Cmd + F. "atheist")

By open I mean there is no rigid rule set or algorithm in my culture to obtain salvation or anything like that (going to temple is optional). You could simply say no. My parents didn't bother me after a while (My mum is an orthodox person). I do want to point out that being a "nasthik" (non-believer) is not encouraged, but ignored.