The Indian Naval Academy (INA or INA Ezhimala) is the defence service training establishment for officer cadre of the Indian Naval Service and the Indian Coast Guard, located in Ezhimala, Kannur district, Kerala. Situated between Ezhimala hill and the Kavvayi backwaters, INA has a 7 kilometre beach front on the Arabian Sea. It conducts basic training for all officers inducted into the Indian Navy and Indian Coast Guard. It is Asia's largest, and the world's third-largest, naval academy. The Naval Academy (NAVAC) was established in May 1969 and training of Orientation courses commenced in Aug 2005, while it was formally inaugurated on 08 January 2009 and the name changed to Indian Naval Academy. It shares the 2,452 acre (9.92 km2) site with the naval base depot, INS Zamorin, and the naval hospital, INHS Navjivani. The President's Colour was awarded to INA on 20 November 2019. The President’s Colour is the highest honour that is bestowed upon a military unit.

Admission
Potential candidates to the undergraduate officer-trainee program of the Indian Navy apply through the NDA and NA exam conducted by the UPSC. The flagship course of the INA is the 10+2 Indian Naval Academy Course (INAC) in which a cadet undergoes training of four years in the academy. Also, the NDA cadets opting to join the Navy complete three years of joint training at NDA, Khadakwasla with the Army and Air Force cadets. They then transfer to INA for the next year. Candidates joining through 10+2 Navy Tech Entry have the option to major in Electronics & Communication Engineering, Mechanical Engineering or Naval Architecture and are awarded a Bachelor of Technology degree upon graduation. Upon graduation, cadets are commissioned as sub lieutenants in the navy. Cadets majoring in Naval Architecture have to undergo an additional 6 months of training at the Naval Dockyard, Visakhapatnam after graduation. They also have the option to enroll for additional post-graduate specialisation in the field at the Indian Institute of Technology, Delhi. Admission to INA as graduate officer-trainees of the Indian Navy is conducted through a written examination conducted by the UPSC, followed by 5 days of testing and interviews conducted by the Services Selection Board (SSB). These cover general aptitude, psychological testing, medical tests, team skills as well as physical and social skills. For the Short Service Commission (SSC) officer-trainees, the selection is through merit. SSC officers have the option to apply for permanent commission based on their performance and track record. Graduating officers often go on for additional training or specialisation in areas such as surface warfare, submarine warfare, naval aviation, etc. at other naval schools. Officers joining Indian Coast Guard as assistant commandants also undergo basic training along with graduate officer-trainees of the Indian Navy.

Training
The training zone contains the main academic building complex, as well as physical training, aquatics and outdoor-training complexes, auditoriums, a firing range, fields, cadet's Mess, and cadet's squadrons. The main academic building complex is situated on the highest point of the academy. It includes the Service and Technical Training wings, laboratories, workshops, library, and an 1800-capacity auditorium. The academy accepts up to 1200 cadets for officer training each year. This includes interim training facilities for the Indian Coast Guard.

Location
The Indian Naval Academy, Ezhimala is located approximately 35 km north of Kannur and 117 km south of Mangalore, on the west coast of peninsular India. The nearest railway station is at Payyanur, 8 km away. The nearest airport is  Kannur International Airport, which is about 60  km southeast of Ezhimala. The INA is divided into three zones – a Training zone, an Administration zone and an Accommodation zone. It has a lighthouse (the Mt. Dilly Lighthouse) on its premises.

Administration
The administration zone consists of the Administrative Complex, the naval hospital INHS Navjivani, the logistics complex, the motor transport complex, and the campus fire station.

Accommodation
The academy has uniformed and civilian staff for training and administrative support. It had 161 officers, 47 professors/lecturers, 502 sailors and 557 defense civilians in 2010. The campus includes accommodation facilities for staff and their families, with capacity of about 4000.

INHS Navjivani
INHS Navjivani, which was commissioned on 12 December 2012, is a 64-bed naval hospital in the campus that provides healthcare to cadets, staff and navy veterans.

Cadet life
On reporting at the academy, cadets are assigned to squadrons. Currently, there are 6 squadrons, namely - Achiever, Braveheart, Cheetah, Daredevil, Eagle and Fighter, which are planned to be increased to 16. Each squadron consists of four divisions with approximately 50 cadets in each division. Each division is commanded by a commissioned officer of the rank of Lieutenant, responsible for monitoring, guidance, and counseling of the cadets and is headed by a Divisional Cadet Captain (DCC). The squadron is headed by an officer of the rank of Lieutenant Commander. Squadron Cadet Captain (SCC) and Squadron Cadet Adjutant (SCA) ensure the proper functioning of the Squadrons. There is only one Flotilla now, comprising all six squadrons, and it is headed by the Flotilla Cadet Captain (FCC) and Flotilla Cadet Adjutant (FCA). The Academy is Headed by the Academy Cadet Captain (ACC) and the Academy Cadet Adjutant (ACA). ACC is responsible for the welfare and upkeep of the trainees whereas the ACA is responsible for the overall discipline of the entire Academy. The ACC and ACA together head the organisation of Appointments which has 1 FCC, 1 FCA, 6 SCC, 6 SCA, and 24 DCC. Cadets are accommodated in individual rooms in the Squadrons. Classroom instruction and outdoor training are conducted separately depending on the cadet's selected majors and specialisations. Through the 4 years of academy tenure, the cadets are trained in all aspects like physical training, swimming, drill, sports proficiency, equitation, cross-country running, and various service-related subjects. When the Academy was at INS Mandovi Goa, there were just 2 Squadrons Destroyers and Frigates with each having 4 divisions. Destroyers had Rana, Rajput, Ranvir and Ranvijat while Frigates had Ganga, Godavari, Gomati and Taragiri.

(Source:- https://en.wikipedia.org/wiki/Indian_Naval_Academy)