Who among the following is responsible for security of airlines at smaller airports?

In the framework of civil aviation security in India, responsibilities are clearly demarcated between the airport operator and the aircraft operator (airline). According to the Bureau of Civil Aviation Security (BCAS) guidelines and the Aircraft Security Rules, the Station Manager of the concerned airline is the designated official responsible for the security of the airline's operations, aircraft, and passengers at a specific station. While the Airport Director (representing the Aerodrome Operator) is responsible for the overall security, administration, and infrastructure of the airport premises, the specific security protocols related to the airline's assets, catering, and boarding processes fall under the purview of the airline's management at that station. At smaller airports, even where the Aviation Security Group (ASG) or state police handles general perimeter security, the airline's internal security remains the responsibility of its Station Manager.