12th marks matter now.

45 is not enough.

If you can give improvement exam its Much better.

The compation is really great .. you need to get atleast 80+ 

Look aroind and get an information where you can gove an improvement exam for 12thgrade around you.

Hope this helps.

Thankyou.

Hello,

i am assuming that you are asking about Graduation in Marine Engineering (GME) The discipline is about the science of nautical architecture. Marine engineers are responsible for supervising the engine crew involved in operating marine vessels and equipment. Their responsibilities also include checking for the smooth functioning of electric motors, steam engines and propulsive engines etc. Marine engineers constantly work to improve the efficiencies of gas turbines, existing shipboard conventional steam equipment, nuclear propulsion plants and diesel plants.

The minimum criteria of eligibility for this course are divided between two main requirements- educational and medical

.Educational Qualifications

B.E./ B.Tech degree holders in mechanical or naval architecture disciplines are eligible to pursue this course. Minimum marks criteria may exist in the case of some institutes. Generally, the minimum eligible score for admission lies between 50-60% aggregate marks in the B.E./ B.Tech program.

Medical/ Physical Standards

Candidates aspiring for the course need to be physically fit and capable of taking up seafaring roles. An unaided vision of 6/12 is required in each eye. Candidates should not be suffering from colour or night blindness. Also, the candidate should not be over 28 years of age at the time of the course’s commencement.

S i would suggest first complete your bachelors degree and then go for GME as your marks in english will not have an impact on eligiblity criteria

hope this helps you 

All the best !