You can find Nifty Trend using Options Data.
It may fail when news comes. Till then option data gives direction and strength.
Look for change in open Interest of different strikes.
https://www.nseindia.com/live_market/dynaContent/live_watch/option_chain/optionKeys.jsp?symbolCode=-10003&symbol=NIFTY&symbol=NIFTY&instrument=OPTIDX&date=-&segmentLink=17&segmentLink=17
Look at put options HUGE OI build up ITM strike and ATM strikes. This means support is shifting higher.
In Calls you see huge unwinding. That means resistance shifting higher.
See this as well.
https://tradingqna.com/t/nifty-bull-run-on-october-13th-the-predictions-were-mixed/22299/4?u=haribabu
You can also have a look at this
https://tradingqna.com/t/how-to-take-directional-view-of-scrip-using-open-interest-in-calls-put-options/127/3?u=haribabu