By when will the Trade Free Max Plan be activated once I subscribe?

Your Trade Free Max Plan will be activated as per the below subscription timings:-

Subscription Time Plan activation and revision of brokerage applicable from
Before 3:30 pm (working day)Same day
After 3:30 pm (working day)Next working day
If subscribed anytime during the weekend/ if trading holidayMonday (i.e. the next working day)