Symbols for index like NIFTY, BANKNIFTY or any other index
I am using WebSocket API and I can pull data for NIFTY or BANKNIFTY futures by lines below:
hist_data = td_app.get_historic_data('NIFTY-I', duration = '6 D', bar_size = 'EOD')
hist_data = td_app.get_historic_data('BANKNIFTY-I', duration = '6 D', bar_size = 'EOD')
However, I am not able to find symbol to pull data for index itself like NIFTY or BANKNIFTY.
Where I can find list of symbols for indices?