Are these exchange traded funds some kind of futures trading? Like are the Nifty ETFs the same as buying a Nifty futures contract?

What are the unique features of the Bank Nifty Futures contracts traded on the NSE and what are the contract sizes?

What are the unique features of the Nifty 50 futures contract traded on the NSE and what are the contract sizes?

What are the unique features of the Nifty IT Index Futures contracts traded on the NSE and what are the contract sizes?

I propose to invest in Gold ETFs (Exchange Traded Funds). What are the basic things I need to know about gold ETFs before investing in the same?

I have decided to test the options market by purchasing call options on the Nifty and individual stocks. Are there are some strategies I can follow for buying calls?

What are the unique features of the Bank Nifty Options contracts traded on the NSE and what are the contract sizes?

What are the unique features of the Individual Stock futures contracts traded on the NSE and what are the contract sizes?

What are the unique features of the Nifty 50 Options contracts traded on the NSE and what are the contract sizes?

What are the unique features of the Nifty IT Index Options contracts traded on the NSE and what are the contract sizes?

I plan to start trading in futures on stocks and indexes? Are there are some things I should avoid as a futures trader?