Who among the following is responsible for guarding the aircraft hanga

Who among the following is responsible for guarding the aircraft hangar ?

Airport security
Airport operator
Aircraft operator
ASG
This question was previously asked in
UPSC CISF-AC-EXE – 2018
Aircraft hangars are critical, restricted areas within the airport premises. Security for such areas, which house valuable aircraft and equipment and are potential targets, is the responsibility of the primary airport security force. In India, this is the Airport Security Group (ASG), primarily composed of CISF personnel, who are tasked with securing the entire airport area including hangars, aprons, terminals, and perimeter.
The ASG is responsible for overall airport security, which includes the security and guarding of critical infrastructure like aircraft hangars.
While aircraft operators may have some personnel within the hangar for maintenance or operations, the overall security and access control of the hangar structure and surrounding area is managed by the airport’s designated security agency (ASG). The Airport Operator manages the facility but the security provision is typically outsourced to or provided by a specialized force like the ASG.