Haryana Urban Development Authority [HUDA] — ingenuine payment

This is regarding a plot in gurgaon, which i was awarded in auction last year. This year while going to request completion certificate for the property, huda told some additional amount due since allotment and have added 10l+ as interest/fine on an original amount of 3l.

Without any notification sent for the dues, it is not fair to expect customer to know of the dues, if any.

I paid the complete amount of auction before the set timeline but still have to keep visiting their office to chase for a response on the complaint registered with them and request to waive off the additional charges of 10l.

I am not very hopeful if consumer forums can help but still would like to be proven wrong.

Please can you help with this matter.