Require Quick Support For Below Queries for Getting Indexes stock and other queries

Hello Sir,
We have few queries regarding kites api for development purpose for my client..Please find the queries below

1) How can we get the indices stocks from zerodha API? Eg :- NIFTY 50,Sensex etc

I want all the stock that belongs to some index.

Eg For NIFTY 50 i want the list of all the stock it consist of Bajaj Finance, Asian Paints,Coal India etc whole 50 to 51 stock which it holds.

2) How can we Get ISIN Number and Sector Name for Stock?

3) How can we get Top Gainer,Top Looser stocks list?

4) How can we get below information in stock details similiar to Money Control?
- Statistic - Market cap val(Cr.)
- Statistic - EPS
- Statistic - Market Lot
- Statistic - P/E
- Statistic - P/C
- Statistic - Industry P/E
- Statistic - Book Value
- Statistic - Price Value
- Statistic - Face Value
- Statistic - Dividend(%)
- Statistic - Div. Yeild(%)
- Statistic - Deliverable(%)

5) How can we get Returns for a Stock. We require below return data same like money control.
-YTD
-1 Week
-1 Month
-6 Month
-1 Year
-2 Years
-3 Years