Delhi Development Authority [DDA] — cancellation of my application 2001898

Address: 110047

Dear sir
I am a successful candidate for dda 2017 lucky withdrawal but due to some financial reason, i would like to surrender my flat. Due to some reason, i will not be able to visit ina dda office kindly suggest is there any way to surrender the flat online
I have mail to [protected]@dda.org.in but there is no response
Looking forward to hearing from you.
My details:-

Name-alok kumar singh
Application number-2001898
Allotted falt-g8 - narela, pocket -03, block e2, type - lig, flat number-54, hird floor