Urgent gmcs related query

pallavi jain (student) (123 Points)

27 May 2017  
I applied for gmcs at NIRC when fees was Rs. 5000 and paid the same through DD. Now it has increased to 7000.Now while applying for batch it is only giving an option to pay 7000 through online mode. I want to know whether i should pay full 7000 right now and ask for refund of 5000 later on or pay 2000 only and ask them to adjust 5000 previously paid.