A completion certificate can be obtained from Chief zonal officer of the municipal corporation/development authority of your city. You and your architect need to submit proper completion certificate application along with following documents
Copy of sale deed/lease deed
Copy of approved building plan and permission letter
Receipt of property tax paid up to date, if any
Receipt of water tax paid
Receipt of underground drainage connection charges
Receipt of electricity cable & road cutting charges paid
Receipt of bore well permission fee paid, if any
Affidavit on Rs 10/- Non-judicial stamp paper to be attested by Notary Public/Metropolitan magistrate declaring ownership of the building, details of the architect/engineer engaged for construction and completion of construction as per bye-laws
Other documents as demanded/ required by the concerned authorities