RAS question
What is M-Sigma in the context of SAMBHAV?
Correct answer: (B) An encrypted messaging app.
M-Sigma is the encrypted messaging app used within the Indian Army's SAMBHAV secure mobile ecosystem.
Explanation
M-Sigma is part of SAMBHAV, the Indian Army's indigenously developed, fully encrypted secure mobile ecosystem. The Economic Times reports that SAMBHAV stands for Secure Army Mobile Bharat Version and functions on contemporary 5G technology for secure communication. Within that ecosystem, M-Sigma is an app equivalent to WhatsApp for messaging and for sharing documents, pictures and videos. That is why the answer is an encrypted messaging app: its role is communication and controlled information-sharing inside a secure Army phone environment, replacing the informal use of WhatsApp-like apps for military communication.
Why the other options are wrong
- (A) A drone control app would operate or manage unmanned aerial systems, while M-Sigma is an app for messaging and sharing documents, pictures and videos.
- (C) A satellite system would be a space-based communication or observation platform, but SAMBHAV is a secure mobile ecosystem and M-Sigma is one of its messaging applications.
- (D) A radar system detects or tracks objects, whereas M-Sigma is a WhatsApp-like messaging and file-sharing app within SAMBHAV.
Concept
This tests defence technology and secure communications under Science and Technology. RAS often frames such topics through named Indian systems and asks what a specific component actually does.