UPSC Prelims Practice Questions — Prime Minister Shri Narendra Modi commissions Indian Navy’s frontline platforms - INS Dunagiri, INS Sanshodhak & INS Agray - in Kolkata

Q1. The Warship Design Bureau (WDB), credited with designing the platforms recently commissioned at Kolkata, is best described as which one of the following?

  • A. The Indian Navy's in-house warship design organisation functioning under Naval Headquarters
  • B. A Mini Ratna defence public-sector shipyard under the Ministry of Defence
  • C. A DRDO laboratory dedicated to developing naval weapon and sensor systems
  • D. An autonomous design directorate operating under Garden Reach Shipbuilders & Engineers

Q2. The Project 17A (Nilgiri-class) frigates are designed primarily as an improved follow-on, with enhanced stealth features, to which one of the following classes of Indian Navy ships?

  • A. Shivalik-class (Project 17) frigates
  • B. Kamorta-class (Project 28) anti-submarine corvettes
  • C. Kolkata-class (Project 15A) destroyers
  • D. Talwar-class (Project 1135.6) frigates

Q3. Among the three indigenous platforms commissioned by the Prime Minister at Kolkata on 21 June 2026, which one is the largest by displacement and the only one belonging to the Project 17A (Nilgiri-class) stealth frigate line?

  • A. INS Sanshodhak
  • B. INS Agray
  • C. INS Dunagiri
  • D. INS Sandhayak

Q4. With reference to the three frontline platforms commissioned at Kolkata on 21 June 2026, consider the following pairings of vessel and role: 1. INS Dunagiri — Project 17A (Nilgiri-class) stealth frigate. 2. INS Sanshodhak — Survey Vessel (Large) for hydrographic and oceanographic survey. 3. INS Agray — the only indigenous aircraft carrier of the group. 4. INS Agray — Anti-Submarine Warfare Shallow Water Craft, among the largest Indian naval warships propelled by waterjets. Which of the above are correctly identified?

  1. INS Dunagiri — Project 17A (Nilgiri-class) stealth frigate.
  2. INS Sanshodhak — Survey Vessel (Large) for hydrographic and oceanographic survey.
  3. INS Agray — the only indigenous aircraft carrier of the group.
  4. INS Agray — Anti-Submarine Warfare Shallow Water Craft, among the largest Indian naval warships propelled by waterjets.
  • A. 1, 2 and 4
  • B. 1, 3 and 4
  • C. 2 and 3 only
  • D. 1, 2, 3 and 4

Q5. Which one of the following is the lead (first) ship of the Indian Navy's Survey Vessel (Large) project, after which the class is named?

  • A. INS Sandhayak
  • B. INS Nirdeshak
  • C. INS Ikshak
  • D. INS Sanshodhak

Q6. How many ships were contracted to be built under the Indian Navy's Survey Vessel (Large) project?

  • A. Two
  • B. Four
  • C. Six
  • D. Eight

Q7. Under Project 17A (Nilgiri class), the programme that includes the newly commissioned stealth frigate INS Dunagiri, how many next-generation stealth frigates are being constructed in total?

  • A. Five
  • B. Six
  • C. Seven
  • D. Eight

Q8. In his commissioning address, the Prime Minister traced India's warship self-reliance from the country's first indigenously built aircraft carrier to the present trio. Which one of the following is that first indigenously built aircraft carrier of India?

  • A. INS Vikramaditya
  • B. INS Vikrant
  • C. INS Viraat
  • D. INS Arihant

Q9. Of the seven frigates of Project 17A (the Nilgiri class), how many were given names reused from the older Nilgiri-class frigates of the 1970s rather than an entirely new name?

  • A. Four
  • B. Five
  • C. Six
  • D. Seven

Q10. Under the Indian Navy's Project 17A (Nilgiri class) indigenous stealth frigate programme, how many frigates in total are being constructed?

  • A. Four
  • B. Six
  • C. Seven
  • D. Three

Q11. In the context of the Indian Navy's indigenous warship programmes, which one of the following correctly describes 'Project 75'?

  • A. Indigenous construction of six Scorpene-design conventional submarines at Mazagon Dock Shipbuilders Ltd, Mumbai
  • B. Construction of seven next-generation stealth frigates of the Nilgiri class
  • C. Construction of four Visakhapatnam-class stealth guided-missile destroyers
  • D. Construction of India's first indigenous aircraft carrier at Cochin Shipyard Limited