B.Sc. Nautical Science Eligibility Criteria
Selecting a career in the Merchant Navy is a major decision, and for those students who want to join the deck department of a ship, B.Sc. in Nautical Science is definitely one course to consider. However, before you choose a college and apply for admission, it is very crucial to be aware of whether you are eligible or not. There are many questions regarding the minimum PCM percentage, English marks, age, vision, and the entrance exam. The first thing to do is to understand all the criteria, and missing any single important criterion can ruin your plans of admission.
Thus, here are the B.Sc. Nautical Science eligibility criteria in easy language from the official IMU admission information released for the 2026-27 session.
What Is B.Sc. Nautical Science?
The B.Sc. Nautical Science is an academic course for three years for students that want to have knowledge in navigation and operating merchant ships. It includes such subjects as navigation, seamanship, operations of a ship, and maritime safety.
It provides a way for students that want to create a career in a deck officer position. Nevertheless, a degree itself does not guarantee any job or certain rank on the ship. The candidate has to pass all the necessary tests, sea service, examinations, and other required things.
Moreover, a B.Sc. in Nautical Science should not be mistaken for a Diploma in Nautical Science (DNS). Both programs are connected with the nautical or deck part of the Merchant Navy; however, the program of the course and admission procedure is different.
B.Sc. Nautical Science Eligibility Criteria
The following table summarizes the principal requirements listed in IMU’s official 2026–27 admission prospectus for the three-year B.Sc. Nautical Science program.
Eligibility requirement | IMU 2026–27 criteria |
Educational qualification | Class 12 (10+2) or equivalent |
Required subjects | Physics, Chemistry, and Mathematics (PCM) |
Minimum PCM average | 60% |
English marks | At least 50% in English in Class 10 or Class 12 |
IMU-CET | Valid IMU-CET rank required |
Marital status | Unmarried |
Maximum age | Depends on gender and category (approx. 17-25) |
Medical fitness | Must meet applicable maritime medical standards |
Eyesight | Unaided distance vision of 6/6 in the better eye and 6/9 in the other eye |
Color vision | Normal color vision, tested using the Ishihara test chart |
Educational Qualification for B.Sc. Nautical Science
First and foremost, the candidate needs to have completed his/her 12th class education. The candidates need to have cleared 10+2 or its equivalent with PCM (Physics, Chemistry, and Mathematics) according to the IMU 2026-27 prospectus.
It means that those candidates who wish to get admission to a B.Sc. in Nautical Science using this mode need to have completed all three subjects in their qualifying examination. Simply having completed 12th class would not suffice.
Can a commerce or arts student apply?
As per the prospectus of IMU 2026-27, the regular 10+2 eligibility is for BSc Nautical Science, and the student has to possess physics, chemistry, and mathematics. Hence, a student who has completed class 12 in the commerce or arts stream but does not have the mandatory PCM subjects will not qualify for this course.
One must ensure that one does not presume oneself to be eligible just because he/she has opted for a change in stream or additional qualification. Only pay for the course application/registration if you are sure of its acceptability as per the prospectus.
Minimum PCM Percentage Required
One of the most important parts of B.Sc. Nautical Science eligibility is the minimum aggregate percentage in physics, chemistry, and mathematics. For the 2026–27 intake, IMU specified a minimum average of 60% in PCM.
Is there a PCM relaxation for SC/ST candidates?
Yeah. The IMU 2026-27 prospectus has lowered the PCM qualification marks by 5% for SC/ST candidates. This relaxation is to the extent of PCM qualification marks only and shall not be taken as relaxation in other eligibility criteria. As per the prospectus, relaxation does not apply to the qualifying marks in English. There is also some relaxation in English for those candidates from the Scheduled Tribes, who are natives of Lakshadweep and the Andaman & Nicobar Islands, as per the conditions stated in the prospectus.
Those who wish to relax should go through the actual wordings in the prospectus. Remember, if you belong to a category, then don’t assume that you will have relaxation.
Minimum English Marks Required
English is yet another subject which is mandatory. In the year 2026-27 intake, IMU used to make it necessary for the applicants to have at least 50 percent marks in English in Class 10 or Class 12. This implies that one may take any of these two examinations in order to qualify for eligibility in English, provided he/she has the requisite qualifying English marks, according to the admission criteria. A high PCM average does not negate the requirement.
For example, a student securing 70 percent marks in physics, chemistry, and mathematics but 45 percent in English in classes 10 and 12 would not qualify for the 2026-27 English eligibility criterion.
Table of Contents
Is IMU-CET Compulsory for B.Sc. Nautical Science?
Yes. According to the admission policy for 2026-27, a good IMU-CET ranking will be mandatory for a B.Sc. in Nautical Science. IMU CET stands for Indian Maritime University Common Entrance Test. It is one of the most important steps towards admission, and candidates need to refer to the latest exam notification for the registration process, syllabus, exam schedule, and admission procedures.
Even if you have fulfilled the academic eligibility criteria, it does not guarantee admission.
How should you prepare for IMU-CET?
Preparation is easier to manage when you combine concept revision with regular practice. Students can begin by strengthening physics, chemistry, and mathematics while also preparing the other sections specified in the official examination syllabus.
For structured preparation, students may explore JMDI Academy’s IMU CET preparation program. Its preparation resources include the Crack IMUCET Book, which contains 6,000+ MCQs, concise chapter-wise theory, detailed solutions, and five sample test papers.
B.Sc. Nautical Science Age Limit
Age is another condition that candidates must check carefully. Under the IMU 2026–27 prospectus, the maximum age limit varies by gender and category.
Category | Male candidates | Female candidates |
General | 25 years | 27 years |
OBC | 28 years | 30 years |
SC/ST | 30 years | 32 years |
The age reference date for the 2026–27 admission cycle was 1 August 2026, the opening date specified for the academic session in the prospectus. These are maximum ages, not an indication that every candidate in the age group is automatically eligible. The educational qualifications, medical fitness, entrance examination, and other such conditions still matter.
Marital Status Requirement
According to IMU 2026-27 B.Sc. Nautical Science admission requirements, the candidate must be unmarried. Age and fitness in addition to any academic achievement. The requirement regarding marital status must be fulfilled, while PCM/English marks after 10th class have no significance.
The candidates need to refer to the relevant prospectus and application form for the purpose of declaration/documentation.
Medical Fitness for B.Sc. Nautical Science
Fitness in terms of good health is particularly critical for candidates seeking admission to the nautical course owing to the nature of duties involved, such as navigation and safety concerns, along with working in challenging conditions.
The candidates must be fit in terms of their health as per the Merchant Shipping medical fitness guidelines applicable under the IMU prospectus 2026-27. The prospectus gives specifications regarding eye and hearing and also demands a fitness certificate of the candidate signed by a DGS-approved doctor. Do not rely on your general health check-up. The candidate will have to determine his/her fitness in accordance with the relevant requirements and have himself/herself medically checked by a DGS-approved doctor.
9.1 Eyesight requirements
For the nautical or deck department, the DGS pre-sea eyesight standard specifies unaided distance vision of:
- 6/6 in the better eye
- 6/9 in the other eye
The standard also states that there must be ‘no relevant morbid condition of the eyes or eyelids likely to be aggravated or recur.’ These are the benchmarks for normal vision. The standard may be met with the use of spectacles or contact lenses, but this does not automatically meet the requirement for this course.
9.2 Color vision requirements
Candidates should have normal color vision by the Ishihara test chart as per applicable pre-sea medical standards. Color vision is important in nautical work, as seafarers may need to identify navigation lights and other color-coded visual signals. A candidate should not determine their own eligibility on the basis of an online test or a normal eye test. The necessary assessment should be made by the appropriate approved medical procedure.
Visit the IMU CET Official Prospectus to know the eligibility criteria for B.Sc. Nautical Science.
How to Check Your B.Sc. Nautical Science Eligibility Before Applying
Before applying to the 2027-28 intake, address each criterion rather than simply verifying your Class 12 percentage.
- Subject verification: Ensure that your qualifying examination comprises physics, chemistry, and mathematics according to the applicable criteria.
- Calculate PCM percentage: Verify if you meet the specified percentage as well as the officially prescribed relaxation, if any.
- English mark check: Verify that your Class 10/12 English mark satisfies the applicable criteria.
- Age check: Consider the age reference date mentioned in your prospectus.
- Review marital status criterion: Check that you satisfy the marital status criterion prescribed for your course.
- Medical criteria: Be aware of eyesight criteria, color vision criteria, hearing tests, and medical criteria before making your financial commitments.
- Prepare for IMU-CET: Take into consideration the official examination and admission notification.
- Verify institute and course: Consult the official IMU website as well as the concerned institute’s course and admission criteria.
Students who want an initial eligibility check can explore the Merchant Navy Decoded Eligibility Calculator. Use the eligibility calculator to check your PCM marks, English marks, age, medical and other eligibility.
Merchant Navy Decoded App for Eligibility and Admission Guidance
Students often have to check several details at the same time: academic eligibility, medical standards, colleges, admission forms, and entrance-exam preparation. The Merchant Navy Decoded App brings together maritime career guidance resources that can help students navigate this process. IMU-CET & Sponsorship Guidelines Series, Expert Counseling, Medical Fitness Calculator, latest forms, and maritime updates.
The Eligibility Calculator can assist you in organizing your basic academic details, whereas the College Portal can assist you in exploring college information. Such tools are very useful, but finally, the prospectus and admission notice of the relevant institute become the sources for your eligibility check. Depending upon the tool required by you, you can explore the Eligibility Calculator, College Portal,
FAQ’s (Frequently asked Questions)
According to IMU’s 2026–27 prospectus for the 10+2 stream, applicants should have qualified for a class 12th or equivalent with physics, chemistry, and mathematics. Applicants also need to fulfill the prescribed marks, age, marital status, medical, and entrance examination criteria.
As per the IMU 2026–27 prospectus, the minimum average of 60% in PCM is required. Additionally, 5% PCM eligibility relaxation is granted for SC/ST applicants as per conditions laid out in the prospectus. Please refer to the 2027–28 prospectus for application.
According to the 2026–27 criteria, the applicant needs to have at least 50% in English in class 10th or class 12th. The prospectus has a very narrow exception for certain eligible Scheduled Tribes from Lakshadweep and Andaman and Nicobar Islands.
IMU-CET Rank is mandatory for admission to the course as per IMU’s 2026–27 admission rules. Applicants should go through the exam and admission process as per their intake.
Age cut-offs for 2026-27: The maximum age allowed for general male candidates was 25 years, while that for general female candidates was 27 years. Higher maximum ages were provided for OBC (NCL) and SC/ST candidates. The reference date was 1st August 2026; please see the next prospectus for the age cut-off of 2027-28.
The student not having studied the requisite physics, chemistry, and mathematics subjects does not satisfy the normal 10+2 path indicated in the IMU 2026-27 prospectus.
The age cut-offs provided by the IMU 2026-27 prospectus are for both male and female candidates. Besides satisfying the requisite academic criteria for the entrance examination and health criteria of the intake, applicants need to satisfy all other criteria as well.
The pre-sea eyesight standard for nautical or deck department candidates requires a minimum distance vision of 6/6 in the better eye and 6/9 in the other eye. Normal color vision is an important criterion too and will be checked using the Ishihara test chart.
Please don’t assume that wearing spectacles or contact lenses will suffice to meet the eyesight requirement due to presbyopia. The published pre-sea standard calls for unaided distance vision. You must verify the same with the help of a DGS-approved medical examiner.
Yes. The relevant pre-sea standard mandates normal color vision and will be assessed with the help of the Ishihara test chart.
No. Satisfying academic eligibility is just one part of the overall eligibility. Applicants must also satisfy age and marital status criteria and go through the relevant IMU-CET and admissions procedure.
First, you can refer to the official prospectus of IMU and the notice of admission issued by the concerned institute. For further preparation and planning, you can refer to the IMU-CET preparation material of JMDI Academy, the Crack IMUCET Book, IMU-CET Test Series, and Merchant Navy Decoded App Eligibility Calculator.