NPS - How much pension I receive in future?

I have a opened a NPS a/c for myself. I have a query - about the NAV value. When I was entered into the system then NAV was approx 10, but market now touch 19000 still NAV 13.50 or 13.60 in between where my 50% investment into the equity. What we will see in future in NAV Returns?
Another question - that after 30 years, I mean when it will be mature then I shall receive a pension as per that days market rate. How much pension I receive in future?

NPS has two parts - Corpus building phase (which you are doing now by investing in NPS), later on you have to buy an annuity from life insurers (we have LIC and HDFC Life, at the moment which are offering annuity). The annuity depends on type of annuity you are buying, for how long, for how much corpus etc.

You can can check latest NAVs on NPS website. How much each fund will give return in future that nobody can predict. But if you keep on investing for long term (min 10-15 years), you would get good return on your investment.