We all are waiting on the official release of Pokemon Go. However, you can play this the most popular mobile game anyway. Recently new version (i.e. 0.29.3) has been released. The game does not require any new permission, so the update will be easy.
Niantic studio has not introduced big improvements in this version. Pokemon Go 0.29.3 is a minor update with text fixes. However, you should install it anyway. I know that a lot of people experience big stability issues because of servers performance. However, in my opinion, the situation is improving all the time. I hope that Pokemon Go will be officially available soon in India.