Let's suppose builder wants to make payment to it's supplier of Rs. 10 lakh and he already submit form 3 with bank for withdrawal of funds from designated account.
bank accept form 3 and allow to withdraw Rs.30 lakh. Now builder want to use 10 lakh from designated account then here builder can make payment of RS 10 lakh directly from designated account to suppliers bank account or he need to transfer 10 lakh to his other account and then make payment to supplier bank account.