About INS Sindhuratna:
- INS Sindhuratna had gone for an upgrade in Severodvinsk, Russia after a major accident in February 2014.
- INS Sindhuratna is a Russian Type 877EKM diesel-electric submarine also popularly called a NATO-defined Kilo-class sub.
- Eight of the Navy’s diesel-electric submarines are Kilo class or Sindhughosh class from Russia (and the former USSR), sourced between 1984 and 2000 and INS Sindhuratna is among the oldest Kilo-class submarines in the fleet.
- It was commissioned into the Indian Navy in December 1988.
Q1) What is NATO and what was its purpose?
NATO is an alliance of countries from Europe and North America. It provides a unique link between these two continents, enabling them to consult and cooperate. Its purpose was to secure peace in Europe, to promote cooperation among its members and to guard their freedom
Source: Kilo-class submarine INS Sindhuratna reaches India after major refit in Russia
Last updated on January, 2026
→ Check out the latest UPSC Syllabus 2026 here.
→ Join Vajiram & Ravi’s Interview Guidance Programme for expert help to crack your final UPSC stage.
→ UPSC Mains Result 2025 is now out.
→ UPSC Notification 2026 is scheduled to be released on January 14, 2026.
→ UPSC Calendar 2026 has been released.
→ UPSC Prelims 2026 will be conducted on 24th May, 2026 & UPSC Mains 2026 will be conducted on 21st August 2026.
→ The UPSC Selection Process is of 3 stages-Prelims, Mains and Interview.
→ Prepare effectively with Vajiram & Ravi’s UPSC Prelims Test Series 2026 featuring full-length mock tests, detailed solutions, and performance analysis.
→ Enroll in Vajiram & Ravi’s UPSC Mains Test Series 2026 for structured answer writing practice, expert evaluation, and exam-oriented feedback.
→ Join Vajiram & Ravi’s Best UPSC Mentorship Program for personalized guidance, strategy planning, and one-to-one support from experienced mentors.
→ UPSC Result 2024 is released with latest UPSC Marksheet 2024. Check Now!
→ UPSC Toppers List 2024 is released now. Shakti Dubey is UPSC AIR 1 2024 Topper.
→ Also check Best UPSC Coaching in India
