Could not get option strike LTP for BANKNIFTY

snthsh11
I tried to get LTP for BANKNIFTY ATM option strike but i got empty result.

Here is the trading symbol i used. I used both weekly and monthly expiry. I also tried kite.ltp() and kite.quote() but with no success.
strike_symbol_list = ['NSE:BANKNIFTY2320941500PE', 'NSE:BANKNIFTY23FEB41600CE']

But i can get price for stocks. For eg. if i try 'NSE:INFY' i get results but not for indices options.

What am I doing wrong here?
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