Hi Team

I want to subscribe to nifty index but not FnO.
What script should i use for the same.
I tried with below script combination but not getting any data
script: 'nse_fo|26000'
script: 'nse_cm|26000'

for both of the above script i am getting response as given below
receiveTick::::: [ { tvalue: '24/02/2021 10:26:20', name: 'tm' } ]

Hi Team,
Is there any option in websocket streaming of instrument using symbol than token

for example I want to stream data of nifty feb18 2021 expiry
socket_scripts = “nse_cm|NIFTY18FEB2111950CE"

Thanks