Sikka Karnam Greens next 80% of the money should be paid within 30 days after you have done the booking. In this case it would be the loan money that you have taken from a bank for the booking. And the last part of the payment, that is the last 10% of the price money, should be paid at the time of taking possession of the property. At this time, you will need to pay all the additional charges that were due earlier.