Registration document seized by ACB while raid in Registrar office

I went for registration of a plot in Maheshwaram, Hyderabad registrar office after giving all the money to the developer on 27th June 2019. The registration process was completed. I didn't receive the registration certificate yet. When I called the developer to enquire about the registration certificate, he told me there was an ACB raid at the registrar office by ACB, the sub-registrar was arrested and all the documents of the property registration have been seized by the ACB. (https://timesofindia.indiatimes.com/city/hyderabad/in-a-two-day-long-trap-acb-nabs-sub-registrar-aides-taking-bribe/articleshow/69981098.cms) I want an advice about - is what the developer is telling me possible? If yes, then how will I get the seized documents from ACB back? Are the registration that happened on that day are void now?