I want to know name of navy which is the most powerful in the Indian Ocean, so can you tell me for my GK ?

As you are asking as far as Power is concerned, it is absolutely sure, that Indian Navy is the most powerful here.

First of all, the surrounding seas are 70% Indian Waters, thanks to our 7500 km long coast line, and the Lakshwadeep and Andaman Nicobar Islands which increase our water territories exponentially due to their unique positions.

Indian Navy is the naval branch of the Indian Armed Forces

Type Navy

Size 58,350 active personnel

295 ships & 251 aircrafts

Part of Indian Armed Forces,(Ministry of Defence, Government of India)

Headquarters New Delhi

Motto(s) शं नो वरुणः (Sanskrit)

IAST: Shaṃ No Varuṇaḥ


Colours Navy Blue, White

March Jai Bharati

Fleet 2 aircraft carriers

1 amphibious transport dock

9 landing ship tanks

10 destroyers

14 frigates

24 corvettes

6 mine countermeasure vessels

14 submarines

25 patrol vessels

4 replenishment oilers

Engagements
First Opium War
Second Opium War
World War I
World War II
Portuguese-Indian War
Indo-Pakistani War of 1965
Bangladesh Liberation War
Indo-Pakistani War of 1971
Anti-piracy operations in Somalia


Commanders

Chief of Naval Staff (CNS) Admiral Sunil Lanba, AVSM, SM, ADC

Vice Chief of Naval Staff Vice Admiral Karambir Singh, AVSM

Notable

commanders Admiral S. M. Nanda