What is the name of the trading strategy that involves profiting from the price difference between two futures contracts with different expiration dates?

Why is the classic futures-spot arbitrage strategy not readily accessible to retail investors in the USD/INR market?

What is a Futures Bull Spread?

How can traders directly buy or sell spreads without executing separate orders for each futures contract?

Compared to the Nifty 50 index, how is the volatility of the USD/INR currency pair characterized?

What type of correlation exists between the USD/INR currency pair and the Nifty 50 index?