Which is a better option for merchant navy: B.Sc nautical science or diploma in nautical science?

B.Sc is the best because its a degree course whereas diploma in nautical Science is just a diploma, you will get much preference in Navy if you have degree in that field.

It's better to go with B.Sc. Nautical Science degree as it is of more importance. B.Sc. In Nautical Science is a 3-year undergraduate course which is split into 6 semesters. Each year consists of 2 semesters and contains a thoroughly practical approach to all the concepts of Nautical Technology. Th