Science

You are eligible to seek job as a Scientific Officer in ISRO after MSc Physics. ISRO publishes it's Scientific Officer requirements regularly in leading newspapers. You can join recruitment process by applying against open vacancies and participating in written test and interview process.

Dear,
Can you specify your short introduction and especially your area of interest, I would recommend you few options.
All the best

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Here are few best level of exam for marine engineering for UG candidates:
MERI: Marine Engineering and Research Institute entrance exams
IIT JEE: IIT Joint Entrance Examination
AIEEE: All India Engineering Entrance Examination.
AICET: All India Common Entrance Test.
IMU CET: Indian Maritime University Common Entrance Test

5-years integrated M.Sc programme at IITs includes content of both B.Sc and M.Sc degrees.

B.Sc CS is sufficient qualification to crack Probationary Officer exam conducted by IBPS. In order to increase your chances to get a job in the Public Sector Banks and Private sector banks, you can do MBA in finance.

If you don't want to go with B.Com & BBA then go for BCA. There are some colleges offering BCA to students who completed their secondary education without maths. Check for those colleges, definitely you can find a good ones.
Best of luck!

Although it's not mandatory, good maths background is helpful and required to become a good game programmer and designer.

The eligibility criteria for doing B.Sc in journalism is a 10+2 from a recognised board. Unfortunately, Diploma from Polytechnic is not treated equivalently to 10+2 by a majority of universities. You are advised to check with your targeted universities whether they allow Diploma holders to seek admission in B.Sc in journalism.

You have to choose between biology and maths stream. Also, you can opt for both if you belong to a CBSE school.