Index strike prices

Hi,
1 How many strike prices will be henceforth available on expiry day to trade in sensex, nifty and banknifty options?

2 for NIFTY, weekly options expiry is on Wednesday or Thursday?
What about monthly expiry?

3 for SENSEX it is Tuesday right?

Hey @sachin_Learner

There’s no fixed number of strikes. Exchanges introduce them dynamically based on market movements and pricing behavior.

Nifty weekly and monthly is on Thursdays.

Yes, its on Tuesday.