The S-400 Missile Defence System is procured by India from:

The correct answer is Russia.

Key Points

• The S-400 Triumf is a next-generation mobile surface-to-air missile system developed by Russia's Almaz Central Design Bureau.
• It is one of the most advanced air defense systems in the world, capable of engaging a variety of aerial targets, including stealth aircraft and ballistic missiles.
• India signed a $5.43 billion contract with Russia in October 2018 to procure the S-400 missile defense systems.
• The S-400 system provides India with a strategic advantage in terms of securing its airspace against potential threats from adversaries.

Important Points

• The S-400 system comprises a multifunction radar, autonomous detection and targeting systems, anti-aircraft missile systems, and a command and control center.
• It is capable of firing multiple types of missiles to create a layered defense mechanism.
• The system can engage up to 80 targets simultaneously within a range of 400 km and an altitude of up to 30 km.