If we look at Bank nifty option chain data (25JUN2020) then Total open intrest on calls side around 56 lakh and puts side also 56 lakh, here call writers are almost equal to put writers.
Further if we look at Implied volatility at ATM (at the money), we will find 62.02 % on put side and 48.02 % on call side, Which means From current Total OI its looks neutral condition & IV data shows negative sentiments.
Similarly we can look for nifty option chain data. With that data also we are getting same sentiments.
You can see Option chain data by clicking Nifty 50 & Bank Nifty image.