what is the hindu epistemology?

Answer 1

Indian epistemology or the theory of knowledge attempts to provide a rational basis for an intelligible discourse on matters of common, everyday experience, on the one hand, and in concentrating on the subject of cognition, it attempts to offer insights into the real, that is, essential, nature of this subject, the being who cognizes.

http://them.polylog.org/4/fsj-en.htm
http://en.wikipedia.org/wiki/Eastern_epistemology#Hindu_Epistemology

Answer 2

to realise the very purpose of life