• The Defence Minister Rajnath Singh recently handed over three indigenously developed high technology systems to chiefs of the three armed forces: the Indian Army, the Indian Navy and the Indian Air Force.
• The three systems namely, Border Surveillance System (BOSS), Indian Maritime Situational Awareness System (IMSAS) and ASTRA Mk-I Missile, have been developed by the Defence Research and Development Organisation (DRDO).

Border Surveillance System (BOSS)

• BOSS is an all-weather electronic surveillance system. It was handed over to Army Chief General M M Naravane.
• BOSS has already been deployed in Ladakh against the Chinese troops for day and night surveillance. 
• It has been designed and developed by Instruments Research & Development Establishment (IRDE), Dehradun and is being produced by Bharat Electronics Limited (BEL), Machlipatnam.
• The system facilitates monitoring and surveillance by automatically detecting the intrusions in harsh high-altitude sub-zero temperature areas with remote operation capability. 

Indian maritime situational awareness system (IMSAS)

• It was handed to Navy Chief Admiral Karambir Singh.
• The IMSAS is state-of-the-art high performance intelligent software system that provide Global Maritime Situational Picture, Marine planning tools and Analytical capabilities to Indian Navy.
• The product is jointly conceptualised and developed by Centre for Artificial Intelligence & Robotics (CAIR), Bengaluru and Indian Navy, while it is being produced by BEL, Bengaluru.

Astra Mk-1 missile system

• It was handed over to Air Chief Marshal R K S Bhadauria.
• This missile is the first indigenously developed beyond visual range (BVR) missile that can be launched from Sukhoi-30, Light Combat Aircraft (LCA), Mig-29 and Mig-29K. 
• ASTRA weapon system has been developed by Defence Research & Development Laboratory (DRDL) and production by Bharat Dynamics Limited (BDL) Hyderabad.