Diploma in Nautical Science is a highly accessible course to build a career in merchant navy. Find out complete details about this course, including eligibility, entrance exam, top colleges, course fees, job options and more.
The Diploma in Nautical Science (DNS) is a sought-after 1-year residential pre-sea course in India, preparing 10+2 PCM students for a dynamic merchant navy career as deck officers. Offered at IMU campuses and top institutes, it covers navigation, seamanship, ship stability, cargo handling, and safety essentials. After the diploma, 18 months onboard training as deck cadets leads to B.Sc. degree and officer certification. In 2026, with persistent seafarer shortages and growing Indian shipping, it offers high-demand jobs, tax-free salaries from ₹25,000–₹60,000 monthly stipends upward, global travel, and rapid promotions.
This article explores the Diploma in Nautical Science degree in detail. Find out complete details about DNS in India, including top colleges, entrance exams, preparation tips, syllabus, course fees and more.
Diploma in Nautical Science: Course Overview
A diploma in nautical science is a one-year program that serves as a pathway to a BSc in Nautical Science, providing comprehensive training for a career in the merchant navy. This diploma equips students with the essential knowledge and skills for ship navigation and operation. Tuition ranges from INR 1,35,000 to INR 3,55,000 annually, depending on the institution. Prominent colleges offering this diploma include IMU Chennai, TS Rahaman, and B.P. Marine Academy. Admission typically requires the IMU CET entrance exam. Graduates can find employment in the merchant navy, shipping companies, and port trusts.
Feature
Description
Course Name
Diploma in Nautical Science
Duration
1 year
Eligibility
10+2 or equivalent with Physics, Chemistry, and Mathematics
Admission to a diploma in nautical science program is selective, with specific eligibility requirements. Applicants must have completed 10+2 (or equivalent) with Physics, Chemistry, and Mathematics. A minimum of 60% in the qualifying examination is generally required. Applicants must typically be under 25 years old. Meeting medical fitness standards, including specific eyesight requirements, is also mandatory. Sponsorship opportunities are available for qualified candidates.
Criteria
Requirement
Details
Educational Qualification
10+2 or equivalent
With Physics, Chemistry, and Mathematics as compulsory subjects from a recognized board
Minimum Percentage
60%
In the qualifying examination, with a minimum of 50% in English
Age Limit
Below 25 years
As on the date of admission, with a maximum age limit of 28 years for sponsored candidates
Medical Fitness
Medically fit
As per the standards set by the Directorate General of Shipping, with a minimum height of 157 cm and a minimum weight of 48 kg
Eye Sight
Perfect vision
In both eyes, with a minimum visual acuity of 6/6 in each eye, and no color blindness
Entrance Exam
IMU CET or equivalent
A valid score in the entrance exam, with a minimum of 50% in the exam
English Language
Proficiency in English
With a minimum of 50% in English in the qualifying examination, and a valid TOEFL or IELTS score
Physical Fitness
Physically fit
As per the standards set by the Directorate General of Shipping, with a minimum level of physical fitness
Document Requirements
Valid documents
Such as a valid passport, a birth certificate, and a set of attested copies of the qualifying examination marks sheet
Diploma in Nautical Science Admission Process
The admission process for a diploma in nautical science in India involves these key steps:
Verify you meet the eligibility criteria, including age and medical fitness.
Apply to colleges offering the diploma in nautical science, such as IMU Chennai.
If required, appear for entrance exams like IMU CET.
Attend counseling sessions where seats are allocated based on entrance exam performance.
Complete admission formalities, including document verification and fee payment, to secure your seat.
Undergo a medical test to confirm fitness for the program and a career in the merchant navy.
Submit required documents (mark sheets, certificates, identification) for verification.
Pay tuition fees, ranging from INR 1,35,000 to INR 3,55,000 per year, depending on the college.
Participate in practical and on-board ship training.
Complete the one-year diploma program to qualify for careers in the merchant navy, shipping companies, or port trusts.
Entrance Exam Pattern for IMU-CET
The Entrance Exam Pattern for IMU-CETÂ is standardized as per the official Indian Maritime University (IMU) guidelines. It is a national-level Computer-Based Test (CBT) conducted online in English medium. It is mandatory for admission to DNS at IMU campuses and all affiliated private institutes. Here are some highlights:
Mode of Examination: Online Computer-Based Test (CBT).
Duration: 3 hours (180 minutes).
Total Number of Questions: 200.
Type of Questions: Multiple Choice Questions (MCQs) with 4 options each.
Total Marks: 200 (1 mark per correct answer).
Marking Scheme: +1 mark for each correct answer; -0.25 marks (negative marking) for each wrong answer; no penalty for unattempted questions.
Medium/Language: English only
Section
Number of Questions
Marks
Key Focus (Class 11-12 Level / CBSE Equivalent)
Physics
50
50
Mechanics, electricity, magnetism, optics, waves, thermodynamics, etc.
Chemistry
25
25
Physical, organic, inorganic chemistry basics.
Mathematics
50
50
Algebra, trigonometry, calculus, coordinate geometry, probability, etc.
Current affairs, history, geography, science basics, maritime awareness.
General Aptitude
25
25
Logical reasoning, data interpretation, quantitative aptitude, puzzles.
Total
200
200
Preparation Tips for IMU-CET
Here are the key preparation tips for students planning to appear for IMU-CET:
Understand the Exam Thoroughly First Start by reviewing the official IMU-CET pattern, syllabus, and marking scheme from imu.edu.in. Take an initial mock test to identify your baseline score and weak sections like PCM or Aptitude.
Build a Realistic Study Plan: Dedicate 6-8 hours daily with breaks. Spend Month 1 on concepts (NCERT focus), Month 2 on topic-wise practice, and Month 3 on full mocks and revision. Set weekly targets for consistent progress.
Subject-Wise Preparation Strategy Prioritize PCM (100 questions) using NCERT textbooks. Cover high-weightage topics like Mechanics in Physics and Calculus in Math. Allocate daily time for English grammar/vocabulary, Aptitude reasoning, and GK current affairs.
Best Resources & Books (2026-Recommended) Use NCERT Class 11-12 for PCM foundation, guides like “CRACK IMU-CET” by JMDi Academy or 2IMU for MCQs/PYQs, R.S. Aggarwal for Aptitude, and YouTube channels like Merchant Navy Decoded for free explanations.
General Tips to Maximize Score Attempt strong sections first in the exam, aim for 140-160+ correct answers with accuracy, practice time management in mocks, start physical fitness for medicals, and apply for sponsorships alongside preparation.
Top Government Colleges for Diploma in Nautical Science in India
The following table lists leading government colleges in India that offer diploma in nautical science programs. These institutions are known for their strong academics, modern facilities, and experienced instructors.
College Name
City
Total Course Fees (Approx., 2026)
Admission Mode
Indian Maritime University (IMU) Chennai Campus
Chennai
INR 2.75 Lakhs
IMU-CET + Counseling (rank-based allocation)
Indian Maritime University (IMU) Navi Mumbai Campus (formerly TS Chanakya)
Navi Mumbai
INR 2.75 Lakhs
IMU-CET + Counseling (rank-based allocation)
Top Private Colleges for Diploma in Nautical Science in India
Here’s a list of top private colleges in India offering diploma in nautical science programs. These colleges provide a thorough education in nautical science, with some offering a DNS leading to a BSc in Nautical Science. Here are some options:
Navigation III & IV: Advanced Navigation & Chartwork
Advanced celestial navigation, great circle sailing, electronic aids, radar/ARPA plotting, and integrated bridge systems (across semesters).
Cargo Handling, Stowage & Seamanship I & II
Cargo types, loading/discharging procedures, stowage plans, tank cleaning, deck maintenance, ropes/knots, anchoring, mooring, and survival techniques.
English & Human Factors
Maritime English communication, report writing, vocabulary, interpersonal skills, teamwork, and human error prevention in seafaring.
Maritime Law, ISM Code & Safety Management
International maritime conventions (SOLAS, MARPOL), ISM Code, ship security (ISPS), safety protocols, emergency procedures, and legal responsibilities.
Marine Communication & GMDSS Basics
Global Maritime Distress and Safety System (GMDSS), radio procedures, distress signaling, ship-to-shore communication, and VHF usage.
Diploma in Nautical Science Fees Structure: Comparing Government and Private Colleges
Tuition for a diploma in nautical science differs between government and private colleges in India. Government colleges, such as the Indian Maritime University (IMU) Chennai, generally have lower fees. While private colleges typically charge higher. Additional expenses include hostel, mess, and equipment fees.
College Type
Average Tuition Fees (INR)
Hostel Fees (INR)
Mess Fees (INR)
Other Expenses (INR)
Government College (e.g., IMU Chennai / Navi Mumbai)
Career Opportunities after Diploma in Nautical Science: Job Roles, Salary, and Scope
A diploma in nautical science opens doors to various career paths in the merchant navy and related sectors. Graduates can become deck cadets, navigating officers, chief officers, or captains. Starting salaries range from INR 2,00,000 to INR 8,00,000 per year, depending on the role and experience. With experience and further certifications, salaries can exceed INR 20,00,000 per year. The merchant navy and shipping companies are primary employers.
Job Role
Average Starting Salary
Experience Required
Key Responsibilities
Deck Cadet
INR 2,00,000 – 4,00,000 per annum
0-1 year
Assisting in navigation, maintaining deck equipment, and performing watch duties
Second Officer
INR 4,00,000 – 6,00,000 per annum
1-3 years
Assisting the chief officer, navigating, and maintaining safety equipment
Chief Officer
INR 6,00,000 – 10,00,000 per annum
3-6 years
Overseeing cargo operations, managing deck crew, and ensuring safety protocols
Captain
INR 10,00,000 – 20,00,000 per annum
6-10 years
Commanding the ship, making navigational decisions, and ensuring safety and efficiency
Navigating Officer
INR 3,00,000 – 5,00,000 per annum
0-2 years
Assisting in navigation, plotting courses, and maintaining navigational equipment
Marine Engineer
INR 4,00,000 – 8,00,000 per annum
1-4 years
Maintaining and repairing ship engines, pumps, and other mechanical equipment
Port Manager
INR 5,00,000 – 10,00,000 per annum
2-5 years
Overseeing port operations, managing cargo, and ensuring safety and efficiency
Shipping Manager
INR 6,00,000 – 12,00,000 per annum
3-6 years
Coordinating shipping operations, managing logistics, and ensuring timely delivery of cargo
Marine Surveyor
INR 4,00,000 – 8,00,000 per annum
1-4 years
Inspecting ships and cargo, assessing damage, and ensuring compliance with regulations
Higher Studies After Diploma in Nautical Sciences
BSc (Applied Natural Science):
This is the integrated degree awarded by IMU after DNS + 18 months sea time and distance learning modules. It qualifies you for the Second Mate Certificate of Competency (CoC) exam and Deck Officer roles.
MBA in Shipping, Port & Logistics Management or MBA International Transportation & Logistics:
A 2-year postgraduate program (offered by IMU or affiliates) focusing on maritime business, port operations, supply chain, and logistics. Ideal after sea experience for shore-based management, shipping companies, or port authorities.
M.Tech in Marine Technology, Naval Architecture & Ocean Engineering, or Dredging & Harbour Engineering :
2-year technical PG programs at IMU campuses, emphasizing advanced marine systems, ship design, ocean structures, or port infrastructure. Suited for those seeking engineering specialization or R&D in maritime technology after nautical background.
M.Sc. in Maritime Safety and Environmental Management:Â
A postgraduate course covering maritime regulations, safety protocols, environmental protection, pollution prevention, and risk management. It prepares graduates for roles in marine safety auditing, compliance, or environmental consulting in the shipping industry.
Master of Science in Marine Engineering:Â
A 2-year PG program (available at select institutes like IMU or international pathways) focusing on marine propulsion, engine systems, and management. It allows crossover from nautical to engineering side for advanced technical or supervisory roles at sea or ashore.
Frequently Asked Questions (FAQs)
Q1. What is the duration of the diploma in nautical science course?
The diploma in nautical science course lasts for 1 year. This diploma-level program focuses on nautical science, providing a comprehensive understanding of the field and its applications.
Q2. What are the eligibility criteria for admission to the diploma in nautical science course?
To be eligible for the diploma in nautical science, you need a 10+2 (or equivalent) qualification with Physics, Chemistry, and Mathematics.
Q3. What is the average tuition fee for a government college offering the diploma in nautical science course?
The average tuition fee for a government college offering the Diploma in Nautical Science (typically a 1-year residential program at Indian Maritime University campuses) is approximately INR 2.5 to 2.75 lakhs for the entire course.
Q4. What are the career prospects after completing the diploma in nautical science course?
After completing a diploma in nautical science, you can pursue opportunities in the Merchant Navy, Shipping Companies, and Port Trusts. Starting salaries typically range from INR 2,00,000 to INR 8,00,000 per year.
Q5. What is the syllabus for the diploma in nautical science course?
The diploma in nautical science syllabus includes core subjects like Applied Mathematics, Navigational Techniques, and Primary Knowledge Subjects. Practical training in Ship Operations, Marine Technology, and On-board ship training is also included.
Q6. Is DNS better than BSc?
DNS (1-year Diploma) is often better if you want to join ships early as a deck cadet, start earning sooner, pay lower fees, and gain sea experience faster. BSc Nautical Science (3-year degree) suits those preferring deeper theory, full graduation, campus life, and easier future options like MBA or shore jobs—choose based on your priority: speed vs. academics.
Q7. What is the salary of Diploma in Nautical Science?
After completing DNS, you join as a deck cadet with a stipend of ₹25,000–₹60,000 per month (often in USD $300–$800). After 18 months sea time + exams, as a Third Officer, salary jumps to ₹1.2–₹3 lakhs per month, rising further with promotions and ship type.
Q8. Is nautical science in demand?
Yes, in 2026 India, nautical science (especially deck officers via DNS/BSc) is highly in demand due to global shipping growth, ongoing seafarer shortages, and expanding Indian fleet. Merchant Navy jobs offer strong security, tax-free high salaries, and worldwide opportunities—recruitment remains robust for qualified cadets.
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