About NOC from AAI

What is NOC in airport?
No height clearance objection certificate (NOC) is issued by India's Airports Authority according to the Govt. ... NOC relating to civil aerodromes is provided on behalf of the Central Government by the Appointed Officer (DO) of the Airports Authority of India (AAI).

What is the abbreviation of NOC?
No Objection Certificate
No Objection Certificate, popularly abbreviated as NOC, is a type of legal certificate issued by any agency, organization, institute or, in certain cases, an individual. It does not object to the covenants of the certificate.