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 June, 2026
→ UPSC Prelims Result 2026 is expected to be released between 13th June and 15th June 2026.
→ 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 UPSC Mentorship Program 2026 for personalized guidance, strategy planning, and one-to-one support from experienced mentors.
→ Join Vajiram & Ravi’s UPSC Mentorship Program 2027 for personalized guidance, strategy planning, and one-to-one support from experienced mentors.
→ UPSC Prelims Provisional Answer Key 2026 out for GS Paper 1 and CSAT.
→ UPSC Prelims Question Paper 2026 Out, Download GS Paper 1 PDF conducted on 24th May 2026.
→ UPSC Mains 2026 will be conducted from 21st August 2026 onwards, and UPSC Prelims 2027 will be held on 23rd May 2027.
→ UPSC Final Result 2025 is now out.
→ UPSC has released UPSC Toppers List 2025 with the Civil Services final result on its official website.
→ Anuj Agnihotri secured AIR 1 in the UPSC Civil Services Examination 2025.
→ UPSC Notification 2026 & UPSC IFoS Notification 2026 is now out on the official website at upsconline.nic.in.
→ UPSC Calendar 2027 has been released.
→ Check out the latest UPSC Syllabus 2026 here.
→ The UPSC Selection Process is of 3 stages-Prelims, Mains and Interview.
→ Shakti Dubey secures AIR 1 in UPSC CSE Exam 2024.
→ Also check Best UPSC Coaching in India
