Possession day is when a buyer is most likely to accept a paper that is not the right paper. A builder hands over a handover letter, perhaps a completion certificate, and says the occupancy certificate is in process. In Bengaluru that gap can mean a B-khata, delayed loan disbursement and a tussle over electricity and water connections.

Our general explainer on the two certificates already exists; this article takes the Bengaluru angle: the sequence, what each document proves, the legal references and a handover checklist.

The two documents in one view

  • Completion certificate (CC): records that the building has been constructed in accordance with the sanctioned plan (PKP Advocates, 30 May 2026). It comes first.
  • Occupancy certificate (OC): certifies the building is lawful to occupy after verifying fitness for habitation, including fire clearance, structural stability, lift and electrical clearances and water and sanitation approvals (PKP Advocates). It follows the CC.
  • Authority: in Bengaluru the Greater Bengaluru Authority issues the OC through its building plan approval system, according to Brigade and Bajaj Finserv explainers. The BBMP has been replaced by the GBA's five corporations since September 2025 (PropNewz).

The legal hooks

  • Karnataka Municipal Corporations Act, 1976: Section 310 deals with the completion certificate and permission to occupy, as cited by PKP Advocates.
  • RERA, Section 11(4)(b): the promoter must obtain the completion or occupancy certificate and make it available to allottees. Section 19(10) requires allottees to take physical possession within two months of the OC being issued (also cited by PKP Advocates).
  • The practical reading: a builder offering possession before the OC is asking you to take on risk that RERA places on the promoter.

What happens without an OC

  • Khata: no OC can mean B-khata instead of A-khata (PKP Advocates). See our khata article for what that does to loans and resale.
  • Loans: bank disbursement may be delayed or refused.
  • Utilities: electricity and water connections may be refused or later disconnected.
  • Resale: the flat may sell at a discount or not at all.
  • Enforcement: the property may be exposed to municipal action.

Why the CC is not enough

A completion certificate says the building matches the plan. It does not say the fire systems work or that the building is cleared for occupation. Buyers sometimes treat the two as interchangeable because builders use the words loosely. PKP Advocates' advice is to insist on the OC specifically, not on possession letters or a completion certificate alone.

A possession-day checklist

  • Ask for the OC in writing and check that it names your project, block and, if possible, your unit. A certificate for another block does not cover yours.
  • Compare the OC with the sanctioned plan and the CC. Floor count, built-up area and use should match.
  • Check the OC on the municipal portal rather than trusting a paper copy alone, as PKP Advocates recommends.
  • Confirm the fire NOC, lift licence and electricity safety approvals are in place.
  • Ask when the A-khata will be issued for the project and for your unit, and who bears the fee.
  • If the builder says the OC is imminent, defer the final payment tied to possession and ask for a written date, which RERA allows you to hold the promoter to.
  • For loans, tell your bank; many lenders need the OC for final disbursement.

Partly occupied projects

In multi-tower or phased projects, builders sometimes obtain an OC for one tower before others. We did not find an authoritative, published Karnataka rule on partial occupancy certificates that we could cite, so verify with the builder's lawyer and the K-RERA project page whether your specific tower is covered.

Our view

Do not accept possession of an apartment in Bengaluru without an OC covering your block unless you have taken specific legal advice and understand the khata and loan consequences. The cost of waiting a few weeks is usually lower than the cost of fixing a B-khata later.