No. But the net total spending after signing the replacement shouldn't surpass 90 crores mark.
Eg. Let's assume Gujarat have spent entire 90 crores in the auction.
Scenario 1: Jason Roy needs to be replaced and his base price was 2 crores. Here the franchise can sign any other player with no restrictions since the spending budget won't exceed the maximum limit of 90 crores.
Scenario 2: If Jason Roy's base price was 75 lakhs and had Gujarat hypothetically bought him for 1 crore at the auction. Then when a replacement player needs to have a base price of 1 crore or below. If they sign a 2 cr base price replacement instead then they exceed the 90 crore spending budget.