Class 12-science

Engineering has been in the top most. General can be done as well. Then there's digital marketing that anyone can pursue but you'll have more capabilities and stepping into the marketing world will provide a larger view too.

You can do B.Sc. In biotechnology, B.Sc. In microbiology, B.Sc. In agriculture, B.Sc. In forensic Science, B.Sc. In botany, B.Sc. In zoology, B.Sc. In chemistry, BBA etc.

B.Com is not tough if you study well. Infact nothing is tough if you study well. Just make your knowledge deep and clear on every topic.

Well, you can opt for Government engineering colleges of Rajasthan. They may consider and take admissions through class 12th board marks also. All the best!

You will have to clear your maths first without passing in maths you won't be considered for any course.

BCA without maths, because BCA is something which revolves around the understanding of computer structures and various algorithms and coding, therefore, maths is a compulsory subject for the same (at least for the first year). Rather, many institutes allow you for the admission if you have scored 60% or more in maths, in the 12th standard. But you can go for some other stream or field, like B.Sc. Or B.Com. Vocational/IT, if you're way too interested to have computers as your subject.

Obviously, do what you love. There are many people who complete their engineering and do what they love. Engineering is just a backup. My friend is doing preparation for IIT and dreams to become a musician.

Economics at SOAS probes the mechanism of society and explains the factors and processes that underpin production, exchange and distribution, in order to effectively inform economic policy, as well as to understand the consequences of economic and social well-being.
Students are encouraged to develop a deep understanding of particular countries and issues, based on concrete analysis of history, institutions and political economy. This reflects a shared view at SOAS that economics should be rigorous, reflective and, fundamentally, useful.

No, these marks and the specifically the rank you have can be used once in counseling of 2019 admission.

Here is the eligibility conditions for becoming Loco Pilot:-
1)Candidate must complete the minimum 10th standard
2)Candidate need to complete the ITI in any specific trade to apply for this post
3)Minimum age is 18 years. Maximum age is 30 years for general category candidates
Relaxation is there for OBC, SC, ST candidates
4)Candidates who completed the Diploma in Engineering are also eligible
Selection Process:-
1)RRB exam
2)Personal Interview.