Indian Air Force Receives Fourth Squadron of Russian S-400 Triumf System
This delivery is part of a larger $5.43 billion (exceeding ₹40,000 crore) bilateral contract signed in 2018 for five complete squadrons.
The S-400 is an elite long-range surface-to-air missile (SAM) array designed to neutralize aerial threats including stealth jets, missiles, and drones.
This development is strategically critical as it significantly fortifies India's air defense posture along its borders, filling key tactical gaps during global supply chain constraints.
Key Facts / Static GK
India-Russia S-400 Deal Value: $5.43 billion, signed in 2018 for 5 squadrons
Q Practice Quiz — 4 June 2026
1. Which collaborative initiative developed the newly launched AI-enabled voice chatbot 'SAMADHAN DIDI' for the CPGRAMS portal?
Explanation: The 'SAMADHAN DIDI' chatbot was co-developed by the Department of Administrative Reforms and Public Grievances (DARPG) and BHASHINI (an AI-powered language translation platform of the Ministry of Electronics and Information Technology) to make public grievance systems highly accessible and multilingual.
2. Consider the following statements regarding the newly approved Aviation Turbine Fuel (ATF) Price Stabilisation Fund: 1. The Cabinet approved a one-time support of ₹10,000 crore. 2. The scheme runs for a duration of 36 months as a self-sustaining revolving fund. 3. Airlines can purchase fuel from any source without any mandatory agreements. Which of the statements given above are correct?
Explanation: Statements 1 and 2 are correct. Statement 3 is incorrect because participating airlines are mandatory to sign an MoU with Oil Marketing Companies (OMCs) and purchase ATF only from participating OMCs to benefit from the price stabilization.
3. India recently received the fourth squadron of the S-400 Triumf Air Defence System. What is the total number of squadrons contracted under the bilateral agreement signed in 2018?
Explanation: India signed a bilateral agreement with Russia in 2018 to procure five squadrons of the S-400 Triumf air defence system for $5.43 billion. The fourth squadron has recently been delivered.
4. The Indian Army recently tested 'Divyastra Mk-1' in Jodhpur, Rajasthan. What type of military technology is Divyastra Mk-1?
Explanation: Divyastra Mk-1 is an indigenous tactical loitering munition, frequently referred to as a 'kamikaze drone', developed by the Indian startup Hoverit.
5. Which two organizations are jointly organizing the 'Niveshak Shivir' investor awareness and grievance redressal platform in Bhopal?
Explanation: The 'Niveshak Shivir' is being organized through collaboration between the Investor Education and Protection Fund Authority (IEPFA), under the Ministry of Corporate Affairs, and the Securities and Exchange Board of India (SEBI).
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