Your Withdrawable balance is the amount that is eligible for withdrawal on a given day. Any unsettled balance from your trades like your Intraday profits, proceeds of sell transactions from your Portfolio will be available for withdrawal after the settlement cycle.
Following are the settlement cycles:
Delivery Sell transactions – 2 days after the transaction (T+2).
Intraday transactions – 1 day after the transaction(T+1)
F&O/Commodity/Currency transactions – 1 day after the transaction (T+1).