Which one of the following can not be termed as a security incident with regard to the mandate given to CISF ?

The Central Industrial Security Force (CISF) is a statutory body established under the CISF Act, 1968. According to Section 10 of the Act, the mandate of the force is primarily to protect and safeguard industrial undertakings, their property, and their employees. While the CISF is responsible for the overall security of the premises—which includes protecting individuals performing duties essential to the undertaking's operations, such as suppliers and postal dak (mail) delivery personnel—an assault against a customer is not classified as a security incident under its specific statutory mandate.

In such instances, an assault on a customer is typically treated as a "law and order" matter falling under the jurisdiction of the local State Police, unless the incident directly compromises the security of the installation or its protected workforce.