In a significant move to fortify internal security measures, Defence Secretary Rajesh Kumar Singh unveiled the Manual of Security Instructions 2026 during a ceremony at South Block, New Delhi, on March 9, 2026. This comprehensive document represents a critical update to the Ministry of Defence’s security protocols and guidelines.
The newly released manual is designed to provide personnel within the ministry with clear directives on security practices, aimed at addressing the complex and evolving landscape of security threats faced by defense establishments. Officials emphasized that this document will undergo periodic updates to adapt to emerging challenges, ensuring that the ministry remains resilient against potential vulnerabilities.
During the ceremony, Singh underscored the paramount importance of maintaining strict security discipline. “In light of the changing security environment, it is essential for all officers and security personnel to meticulously follow established security procedures,” he articulated. He stressed that adherence to these guidelines is crucial for the protection of sensitive information and for upholding the integrity of the ministry’s operations.
The Defence Secretary praised the Security Office of the Ministry of Defence for their diligent efforts in crafting the detailed guidelines outlined in the manual. He urged all officials and security staff to take an active role in the effective implementation of these updated security measures.
The introduction of the Manual of Security Instructions 2026 is poised to significantly enhance the internal security framework within the Ministry of Defence, fostering a more secure working environment as personnel navigate the complexities of modern security challenges.



