Exam

You need to get a score of above 220 marks in JEE Mains to get your desired branch.

Hi Ashish,
After completing class 10th, you are eligible for Diploma in engineering entrance exam. After completing this course, you will have better opportunities. Either, you can do pursue B.Tech or you can do a job in government or private sector.

Yes, you can go for Marketing stream. You must choose the stream in which you have interest. Marketing do have good future scope in the field of Market Research, Digital Marketing and Retail Marketing. You can very well opt for that.

Chances seem less at this score, the cutoff is above 75-percentile.
https://www.shiksha.com/mba/course/master-of-business-administration-faculty-of-management-studies-baroda-fms-baroda-vadodara-112403

You need to appear for NMAT and have valid decent score in HSC examination to join 5 year integrated program viz. B.Tech+ MBA or B.Pharm+ MBA offered by Mukesh Patels NMIMS.

Dear,
Eligibility as per NATA:
Secured 50% marks in 10+2 or equivalent examination with Mathematics as one of the subjects;
Or
10+3 Diploma (any stream) recognized by Central/State Govt with 50% aggregate marks with
Mathematics;
Or
International Baccalaureate Diploma passed/appearing, after 10 years of S

Hi Dibyendu,
Yes, you can get admission in 2nd year of engineering directly.

Dear Kushal,
It depends on you in which college you want to get admission. Students first choice is of IIT & then NITs & IIITs. You will get admission in any college all over India.

Yes, I don't see any reason why you cannot prepare simultaneously. Plan your studies and follow a routine.

SAT is not required to study in Germany. I answered your previous question, you can check to understand. Please refer to DAAD website for studying in Germany.