KALVARI Class submarines

Why in news

• Thee fifth Scorpene class submarine, INS  'Vagir' , of Project 75 has been launched.

About Scorpene-class submarines

• These are a class of diesel-electric attack submarines jointly developed by the French Direction des Constructions Navales (DCN) and the Spanish company Navantia, and now by Naval Group.
• It features diesel propulsion and an additional air-independent propulsion (AIP), to be integrated in future.

About Kalvari-class:

• The Kalvari class is based on Scorpene-class submarines built for the Indian Navy with diesel-electric attack capacity.
• Defence Ministry of India approved Project-75 in 1997 that allows Indian Navy to acquire 24 submarines.
• Eventually Scorpene class submarines were chosen for the project.
• A total of 6 submarines are being built under the project and the class is named after the first ship of the group: INS Kalvari.
• INS Khanderi, INS Karanj, INS Vela, INS Vagir and INS Vagsheer (upcoming) are other submarines in the class.
• They are being at Mazagon Dock Shipbuilders Limited, a PSU in Mumbai.
• These submarines can target submarines are well as surface ships. And carry deadly armament of torpedoes for the purpose.

About INS Vagir:

• Vagir is a Kalvari class diesel-electric attack submarine.
• INS Vagir is the fifth of six Scorpene-class submarines being built in India 
• It has been named after a sandfish which is found in the Indian Ocean.

PRELIMS QUESTION

Consider the following Pairs of defence equipment and their type:
1.Arihant : Nuclear Submarines
2.Pinaka : Rockets
3.Nag : Surface to air missiles
4.Bhishma : Main Battle Tank
Which of the countries given above are members of both RCEP and Trans-Pacific Partnership (TPP)?
(a)1 and 4 only
(b)1 and 3 only
(c)1,2 and 4 only
(d)1,2,3 and 4

Answer to prelims question