This happens in B / C center single screens.
Where it is hard for distributor to track daily DCRs (Distributor Collection Report) he simply sells off the Center to Exhibitor (or theater owner) to certain amount they usually considers 70-80% of hero/dir recent blockbuster.
Distributor will have no say on the center once it was sold...If movie is hit it will make money and bring profit to exhibitor if not he lose.
This Hires are like some kind Pre Booking ...This huge amount is added to that area's Day 1.collection.
For ex say In Karnataka Raichur town is hired for 40 lakhs. Raichur comes under Karnataka Distribution rights so that 40 lakhs share fig is added to KA Day1 of that film.
When movie is ATBB it would have definitely made huge money in those hired centers...So distributor estimates and gathers the reliable close fig for future business.
Tracking sites / PROs take that number and adds to the final fig as Over Flows.