Added Index Data

We have added separate pages for Indices like Nifty 50, Sensex, Nifty Bank, Nifty Auto and others.

On the index page, we show:
a) Index value -  PE, PBV, Div Yield, and others
b) Charts - Price, PE, Dividend Yield, and Price to Book value
c) Constituents - Here, we provide the list of stocks part of the Index.