Background verification-- No One at permanent Address mentioned in documents

Can someone please help, I was working with one of top 3 Indian IT company for 2 years and now i have been moved some else.
I have one doubt that, documents i shared for permanent address to new company are all perfectly correct but issue is that my parents have been moved to different city now and no one is living on above address and it takes a lot of time for me change my address on documents to new.
So please suggest what should i do if BGV person goes to above address, what can I do now?
would be very thank full.

Inform the company that your parents have moved from existing address.
Give the new address.

hi Nathrao,
Thanks for suggestion, but if the company asks for address proofs for New address that I cannot provide, as it takes lot of time to update address.
please suggest

Pl commence the actions and as problems come ,if any, they can be tackled.