Jayesh apart from Nifty and Bank Nifty there are other indices which one should track. One can divided them into two broader categories. 1)Broader Market Indices 2)Sectoral Indices.
Broader Market Indices
Nifty Next 50
Nifty Midcap50/100 /150 and Smallcap100/50/250
Nifty MidsmallCap 400
These are the indices which I normally track. Its important to track these mentioned indices because it will help you in taking sector and stocks specific trades. Say for example Nifty is trading in a narrow range and Nifty auto is giving breakout, then in such a scenario, it is always advisable to take auto specific stocks and trade in them rather then trading in Nifty Index.
If you want to know more in detail, then you can click on the below mentioned NSE link.