What is the Merchant Navy?
The Merchant Navy is the commercial fleet of ships that carries cargo, fuel, raw materials and passengers across the world’s sea routes. It is a civilian profession, entirely separate from the Indian Navy, which is a military service. In simple terms, the Merchant Navy is the backbone of international trade, since the majority of the world’s goods still move by sea.
Work on board a merchant ship is organised into departments, each led by a senior officer. The Deck department handles navigation, cargo operations and overall safety. The Engine department operates and maintains the ship’s engines and machinery. The Electro-Technical department looks after electrical and electronic systems, and the Catering department manages food and crew welfare.
Merchant Navy Eligibility Criteria
Merchant Navy eligibility depends on the course and the department a candidate wishes to join. There is a route for students after Class 10, a route after Class 12, and a route for those who already hold a graduation degree. In every case, candidates must clear a medical fitness examination, because the profession demands high standards of health and eyesight.
Route 1: After Class 10 (Ratings Route)
Students who wish to join as support crew rather than as officers can enter after Class 10.
1. Minimum Qualification: Pass in Class 10 with Science, Mathematics and English, commonly with a minimum aggregate of around 40%.
Route 2: After Class 12 (Officer Route)
This is the main route to becoming a Deck Officer or a Marine Engineer.
1. Minimum Qualification: Passed Class 12 with Physics, Chemistry and Mathematics.
2. Marks: A minimum of 60% aggregate in PCM, along with at least 50% in English in Class 10 or Class 12.
3. Entrance Exam: Qualify the IMU CET, which is mandatory for admission to DGS-approved pre-sea courses such as the Diploma in Nautical Science, B.Sc Nautical Science and B.Tech Marine Engineering.
Route 3: After Graduation (Graduate Entry)
Graduates can enter the engine or electro-technical stream directly.
1. Graduate Marine Engineering (GME): Open to Mechanical, and other relevant, engineering graduates, generally with around 60% aggregate, as a route into the engine department.
2. Electro-Technical Officer (ETO): Open to Electrical or Electronics graduates and diploma holders who wish to manage a ship’s electrical and automation systems.
Also Read: How to Become a Mechanical Engineer
Merchant Navy Course and Eligibility Criteria
| Course | Academic Eligibility | Age |
| DNS, B.Sc Nautical Science, B.Tech Marine Engineering | 10+2 with PCM, minimum 60% in PCM, and at least 50% in English (Class 10 or 12) | Generally up to 25 years, with relaxation for female and reserved-category candidates as per IMU norms |
| Graduate Marine Engineering (GME) | Engineering degree in Mechanical or a related discipline, around 60% aggregate | As per institute and DGS norms |
| Electro-Technical Officer (ETO) | Diploma or degree in Electrical, Electronics or a related discipline | As per institute and DGS norms |
| General Purpose (GP) Rating | Class 10 with Science, Mathematics and English, minimum aggregate (commonly 40%) | Around 17.5 to 25 years |
Important Note: A 5% relaxation in eligibility marks is generally allowed for SC and ST candidates, though this relaxation does not usually apply to the English requirement.
Merchant Navy Course Fees
| Course | Indicative Total Fee Range |
| Diploma in Nautical Science (DNS) | ₹4,50,000 to ₹7,50,000 for the 1-year residential programme |
| B.Sc Nautical Science (IMU campuses) | Around ₹6,60,000 to ₹8,65,000 for the 3-year programme (varies by campus and category) |
| B.Sc Nautical Science (private institutes) | Around ₹8,00,000 to ₹13,00,000 for the 3-year programme |
| B.Tech Marine Engineering / GME | Varies by institute; candidates should confirm current fees directly with the institute |
Universities and Institutes Offering Merchant Navy Courses and Entrance Exam Accepted
| Institute / University | Location | Merchant Navy Courses | Entrance Exam / Admission Basis |
| Indian Maritime University (IMU), central university | Chennai, Kochi, Kolkata, Mumbai Port, Navi Mumbai, Visakhapatnam | DNS, B.Sc Nautical Science, B.Sc Maritime Science, B.Tech Marine Engineering, B.Tech Naval Architecture and Ocean Engineering | IMU CET |
| Tolani Maritime Institute (TMI) | Pune (Induri) | DNS, B.Sc Nautical Science, B.Tech Marine Engineering | IMU CET, with company sponsorship for DNS |
| Academy of Maritime Education and Training (AMET), deemed university | Chennai | B.Sc Nautical Science, B.Tech Marine Engineering, DNS, GME | IMU CET for DGS-approved pre-sea courses |
| Samundra Institute of Maritime Studies (SIMS) | Mumbai and Lonavala | Pre-sea deck and marine engineering programmes | IMU CET, with sponsorship |
| International Maritime Institute (IMI) | Greater Noida | DNS, B.Tech Marine Engineering, GME, ETO | IMU CET |
| Anglo-Eastern Maritime Academy (AEMA) | Karjat, Maharashtra | DNS | IMU CET, with sponsorship |
| Great Eastern Institute of Maritime Studies (GEIMS) | Mumbai | B.Tech Marine Engineering, GME | IMU CET |
| HIMT College | Chennai | B.Sc Nautical Science, B.Tech Marine Engineering, GME, GP Rating | IMU CET, with DGS approval |
IMU CET: Exam Pattern and Syllabus
The IMU CET (Indian Maritime University Common Entrance Test) is the gateway exam for DGS-approved pre-sea officer courses such as DNS, B.Sc Nautical Science and B.Tech Marine Engineering.
1. Mode: The exam is conducted online in Computer Based Test (CBT) mode, in English.
2. Duration and questions: For UG and Diploma courses, the paper generally runs for 3 hours and carries 200 multiple-choice questions.
3. Subjects: For UG/Diploma technical programmes, the paper covers English, Physics, Chemistry, Mathematics and General Aptitude (which includes General Knowledge and reasoning).
4. Negative marking: A common pattern is a deduction of 0.25 marks for every wrong answer, so candidates are advised to attempt questions they are reasonably confident about.
5. Level: Questions are set broadly at the Class 11 and 12 (10+2) level for Physics, Chemistry and Mathematics.
How to Apply for IMU CET: Application Process
Step 1: Visit the official IMU website (imu.edu.in) and check the current year’s IMU CET notification.
Step 2: Register online with basic personal, academic and contact details; application is accepted only through the online mode.
Step 3: Upload the required documents, such as Class 10 and Class 12 mark sheets, a photograph and signature, as specified in the notification.
Step 4: Pay the application fee online through the payment options provided on the portal.
Step 5: Download the admit card once released, and appear for the CBT exam at the allotted centre and time slot.
Step 6: After results, take part in IMU counselling or the respective institute’s admission process based on your rank.
Merchant Navy Age Limit and Relaxations
Age eligibility is course-specific and is calculated against a reference date set each year by IMU or the individual institute, so candidates should always confirm the exact cut-off date for the admission cycle they are applying to.
1. General Purpose (GP) Rating: Around 17.5 to 25 years.
2. DNS / B.Sc Nautical Science / B.Tech Marine Engineering: Generally up to 25 years for the general category.
3. Reserved categories: Age relaxation is typically available for SC, ST, OBC and female candidates as per IMU and institute norms; the exact number of years varies by category and institute.
4. Graduate entry (GME, ETO): Age limits are usually set by the individual institute and the DGS, rather than a single uniform cap.
Merchant Navy Medical and Eyesight Standards
All candidates must submit a medical fitness certificate issued by a doctor approved by the Directorate General of Shipping.
1. Deck (Nautical Science): Unaided distance vision of 6/6 in the better eye and 6/9 in the other eye is required, along with normal colour vision; colour blindness disqualifies candidates from this route.
2. Marine Engineering: Unaided distance vision must be 6/12 in each eye, or 6/9 in the better eye and 6/18 in the other eye.
Candidates must be free from any medical condition that could impair their ability to perform duties at sea.
Merchant Navy Physical Fitness Standards: Height, Weight and BMI
| Parameter | Male Candidates | Female Candidates | Notes |
| Minimum Height | 157 cm | 150–152 cm | Some relaxation for candidates from hilly or north-eastern regions |
| Minimum Weight | 42–45 kg | 39 kg | Proportionate to height |
| BMI Range | 18–25 | 18–25 | Outside this range may lead to deferment or rejection; doctors may allow time to correct it |
| Chest Expansion | 5 cm (minimum) | 5 cm (minimum) | Commonly required |
| Physical Deformities | Absence required | Absence required | No knock knees, flat feet, or spinal curvature |
How to Become a Merchant Navy Officer: Step-by-Step Process
Step 1 – Pass Class 12 with Physics, Chemistry and Mathematics.
Step 2 – Register for and qualify the IMU CET on the official IMU website, which is mandatory for admission to DGS-approved pre-sea courses.
Step 3 – Clear the medical and physical fitness test, including eyesight, height, weight and BMI standards, conducted by a doctor approved by the Directorate General of Shipping.
Step 4 – Take part in IMU counselling and secure a seat at an IMU campus or an affiliated Maritime Training Institute, based on your IMU CET rank, and pay the applicable course fee.
Step 5 – Complete the pre-sea course, such as the Diploma in Nautical Science, B.Sc Nautical Science or B.Tech Marine Engineering.
Step 6 – Join a ship as a Deck Cadet or Engine Cadet and complete the mandatory onboard sea training.
Step 7 – Clear the Certificate of Competency (CoC) examination held by the Directorate General of Shipping to qualify as a certified officer.
Step 8 – Sail as a certified officer and sit higher CoC examinations to progress through the ranks to Captain or Chief Engineer.
Also Read – how to become a Chartered Accountant
Merchant Navy Salary in India
One of the biggest attractions of the Merchant Navy is its earning potential, which rises sharply with rank, certification and sea experience. The figures below are indicative monthly ranges compiled from maritime training and industry sources. They are not official pay scales, and actual pay varies significantly by rank, vessel type, shipping company, flag state and years of service.
Merchant Navy Salary by Rank
| Rank / Position | Department | Monthly Salary |
| Deck Cadet / Engine Cadet (trainee) | Deck / Engine | ₹25,000 to ₹85,000 (training stipend) |
| GP Rating | Ratings | ₹25,000 to ₹60,000 |
| Third Officer / Fourth Engineer | Deck / Engine | ₹1,50,000 to ₹3,00,000 |
| Second Officer / Third Engineer | Deck / Engine | ₹2,00,000 to ₹4,50,000 |
| Chief Officer / Second Engineer | Deck / Engine | ₹4,00,000 to ₹8,00,000 |
| Captain (Master) / Chief Engineer | Deck / Engine | ₹8,00,000 to ₹20,00,000 and above |
Merchant Navy Salary by Experience
| Experience Level | Monthly Range | Typical Roles |
| Trainee (cadet or rating) | ₹25,000 to ₹85,000 | Deck Cadet, Engine Cadet, GP Rating |
| Junior Officer | ₹1,50,000 to ₹4,50,000 | Third Officer, Second Officer, Fourth or Third Engineer |
| Senior Officer | ₹4,00,000 to ₹8,00,000 | Chief Officer, Second Engineer |
| Command Level | ₹8,00,000 to ₹20,00,000 and above | Captain (Master), Chief Engineer |
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Career Paths After Joining the Merchant Navy
| Career Path | What You Do | Type |
| Sailing Officer (Deck or Engine) | Progress from cadet through the ranks to Captain or Chief Engineer | Sailing |
| Marine Surveyor | Inspect ships for safety, condition and regulatory compliance | Shore |
| Port and Shipping Operations | Manage cargo, vessel scheduling and port logistics | Shore |
| Ship Management and Superintendent Roles | Oversee the technical and operational running of a fleet from ashore | Shore |
| Nautical or Marine Engineering Faculty | Teach and train future seafarers at maritime institutes | Shore |
| Directorate General of Shipping and Regulatory Roles | Work as a nautical or engineer surveyor and in maritime administration | Shore |
| Marine Insurance and Consultancy | Advise on risk, claims and maritime operations | Shore |
Why Choose a Career in the Merchant Navy?
The Merchant Navy stands apart from many career options. It offers high early earnings, with an officer moving from a training stipend to a multi-lakh monthly salary within a few years of clearing the required competency examinations. Income earned on foreign-flagged vessels can be tax-free for seafarers who qualify as NRI, meaningfully increasing take-home pay. The career ladder is clear and merit-based, with promotion tied to sea time and CoC examinations.
Beyond the numbers, the profession offers genuine global exposure, the chance to visit different countries, and free food and accommodation on board.
At the same time, life at sea means long stretches away from family, a demanding routine, and strict medical standards. For candidates drawn to the sea, it can be an excellent fit.
How to Become a Merchant Navy Officer – FAQs
Q1. What is the difference between the Merchant Navy and the Indian Navy?
The Merchant Navy is a civilian, commercial fleet that transports cargo and passengers by sea. The Indian Navy is a military service responsible for the country’s maritime defence. The two are entirely separate careers.
Q2. Which entrance exam is required to join the Merchant Navy as an officer?
For DGS-approved pre-sea officer courses such as the Diploma in Nautical Science, B.Sc Nautical Science and B.Tech Marine Engineering, IMU CET is mandatory. This applies to both IMU campuses and affiliated private institutes.
Q3. Can I join the Merchant Navy after Class 10?
Yes. Candidates who have passed Class 10 with Science, Mathematics and English can join as ratings through the six-month General Purpose (GP) Rating course, rather than as officers.
Q4. What is the starting salary in the Merchant Navy?
A trainee Deck Cadet or Engine Cadet typically earns an indicative stipend of ₹25,000 to ₹85,000 per month. Salaries rise sharply after clearing the Certificate of Competency examinations, reaching several lakh rupees a month at senior ranks.
Q5. Is the Merchant Navy open to women?
Yes. The maritime sector admits both men and women, provided candidates meet the academic, age and medical fitness criteria for their chosen course.