I have given POV to zerodha so I had to do nothing.
But logically speaking you will have to give authorisation. You have nothing to lose even if its not required. So why dont you you authorise the broker on the expiry day.
@ShubhS9 : For long ITM Put , i can see Delivery margin gets blocked( from Wednesday=50% of contract value). This margin can be non-cash collateral as well right ? Like there is no differentiation between cash , non cash ,cash equivalent margin against collateral ( or 50-50 Cash -non cash equivalent rule)?
Ps: I have equivalent stock as well to give the delivery.