Yes , I was looking for the weekly expiry.
Looks like I missed locating this by oversight, though I had opened "instruments.csv". Apparently the other format worked for 22Dec Weekly expiry , so was a bit puzzled.
I stand corrected now.
Than…
Thank you so much Rakesh. Getting a better hang of login and session mgmt from https://kite.trade/docs/connect/v3/user/#login-flow. This give more detailed context over and above the youtube videos which was used for a quick start