Merchant Navy entry requires a 10+2 (PCM) with 60% aggregate and 50% in English for Officers. so its very likely that you can join Merchant Navy.
If you want to know about the Merchant Navy courses after class 12 - https://www.careers360.com/courses/articles/merchant-navy-courses-after-12th-counar Apart from that - if you are curious about the career prospect about Merchant Navy - https://www.careers360.com/careers/merchant-navy
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