Nifty future which chart to follow

Hi

why Nifty or any other future stock not comes with more than 3 months data. i guess nifty future chart to follow rather than nifty50 spot chart price. but unable to plot many lines like 50 day EMA/SMA on that due do less time frame i guess. also no pivot line comes in day chart if someone can help please.

https://tradingqna.com/t/while-backtesting-a-strategy-to-implement-on-futures-do-we-backtest-it-on-spot-instrument-or-the-future-contract-itself-if-the-contract-itself-how-do-we-backtest-for-more-than-the-contracts-period/6734

Pivots are intraday values based on Prev. Days OHLC