India's Gas Turbine Research Establishment (GTRE), part of the Defence Research and Development Organisation (DRDO) has developed an aero-engine which will potentially make India self-reliance in aero-engine technology. What is the name of the engine?
- (a)Ganga
- (b)Yamuna
- (c)Krishna
- (d)Kaveri
Correct — D, Kaveri. India's indigenous aero-engine developed by the Gas Turbine Research Establishment (GTRE) of the DRDO is named the Kaveri engine. It was originally intended to power the Tejas Light Combat Aircraft and continues to be developed — including a 'Dry Kaveri' variant for unmanned combat aircraft — forming the basis of India's push for self-reliance in jet-engine technology.
- (a)Ganga — 'Ganga' is not the name of the GTRE/DRDO aero-engine; the DRDO engine is the Kaveri.
- (b)Yamuna — 'Yamuna' is not a DRDO aero-engine; the correct name is Kaveri.
- (c)Krishna — 'Krishna' is not the GTRE engine's name either; the indigenous aero-engine is the Kaveri.
The Kaveri is a low-bypass turbofan developed by GTRE (Bengaluru), the DRDO laboratory for aero gas-turbine engines. Building a combat-jet engine indigenously is technologically very demanding, and the Kaveri programme is central to India's aim of ending reliance on imported engines.
The DRDO tradition of naming systems after Indian rivers and features can tempt guesses among Ganga, Yamuna, Krishna and Kaveri. The GTRE aero-engine is specifically the Kaveri.
- The Kaveri engine is developed by GTRE, a DRDO laboratory in Bengaluru.
- It is a low-bypass turbofan, originally meant for the Tejas Light Combat Aircraft.
- A 'Dry Kaveri' variant is being developed for unmanned/combat-aircraft applications.
- The programme aims at self-reliance in military jet-engine technology.

- Guessing another river name; the GTRE aero-engine is specifically 'Kaveri'.
Asked as 'name the DRDO/GTRE indigenous aero-engine'.
Consider the following statements in respect of a jet engine and a rocket: 1. A jet engine uses the surrounding air for its oxygen supply and so is unsuitable for motion in space. 2. A rocket carries its own supply of oxygen in the gas form, and fuel. Which of the statements given above is/are correct?
- (a) 1 only
- (b) 2 only
- (c) Both 1 and 2
- (d) Neither 1 nor 2
Answer(c) Both 1 and 2
Same concept — jet-engine technology. That UPSC item tests how a jet (air-breathing turbofan) works; this NDA question names India's indigenous jet engine, the GTRE/DRDO Kaveri.
- practice — not a real PYQ
The Kaveri engine, an indigenous jet engine, is developed by
- (a)HAL
- (b)GTRE (DRDO)
- (c)ISRO
- (d)BEL
Answer(b) GTRE — a DRDO laboratory.
- practice — not a real PYQ
The Kaveri engine was originally intended to power which aircraft?
- (a)Tejas (LCA)
- (b)Sukhoi Su-30MKI
- (c)Rafale
- (d)MiG-21
Answer(a) Tejas Light Combat Aircraft.