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GS3 · Deep ocean

Two Indian aquanauts dive to 5,002 m

1 min readOceanographyScience & Technology
Battle IAS current affairs title card: Two Indian aquanauts dive to 5,002 m (GS3 · Deep ocean, 14 August 2025)

What happened

  • Indian aquanauts Raju Ramesh and Cdr Jatinder Pal Singh (Retd) dived to 4,025 m and 5,002 m in the Atlantic on 5-6 August 2025 in the French submersible Nautile [PIB].
  • It was the first such feat for India [PIB].

Background

  • NIOT took part under Indo-French collaboration [PIB].

Why it matters

  • Builds experience before India’s own Samudrayaan crewed dives.

How to use this in Mains

GS-III Science and technology developments and applications

  1. As per PIB (2025-08-14): indian aquanauts Raju Ramesh and Cdr Jatinder Pal Singh (Retd) dived to 4,025 m and 5,002 m in the Atlantic on 5-6 August 2025 in the French submersible Nautile.
  2. Builds experience before India's own Samudrayaan crewed dives.
Quotable data point

Indian aquanauts Raju Ramesh and Cdr Jatinder Pal Singh (Retd) dived to 4,025 m and 5,002 m in the Atlantic on 5-6 August 2025 in the French submersible Nautile.

PIB: Indian aquanauts deep dive, 14 Aug 2025

Exam angle

UPSC

Prelims: Nautile.

Practice MCQs

Original practice questions (not PYQs).

Practice · UPSC

Depth reached by the deeper Indian dive

Answer (b) & explanation

PIB.

Go deeper

ExplainerWeather Forecasting in India and Mission Mausam: IMD, Numerical Models, Doppler Radars, Bharat Forecast System, Supercomputers, Weather Modification and Early Warnings (UPSC Notes + PYQs)ExplainerAnusandhan National Research Foundation (ANRF): the ANRF Act 2023, the ₹1 Lakh Crore Research, Development and Innovation (RDI) Scheme and India’s R&D Gap (UPSC Notes + PYQs)

Official source: PIB: Indian aquanauts deep dive, 14 Aug 2025

facts from cited sources only; faculty review pending