Can multiple purchase or redemption orders in the same mutual fund scheme be placed on the same day?

Yes, multiple purchase or redemption orders can be placed. Multiple redemption orders can only be placed for the available units in the demat account. Once orders are placed, they cannot be cancelled. If payment is not made within T+5 days, they will be automatically deleted. To know the cut off time and applicable NAV, see What is the cut-off time for mutual fund transactions on Coin and what is the applicable NAV?