JEE

Varun !Since you haven't scored well in JEE mains so you will not get admission in top Government institutes but don't worry there are some private institutions that are doing equally good as them,you may get admission in them by scoring a good rank in their entrance examination and thereafter getting high scholarship.some of these universities are:
1.BITS
2.Lovely Professional University
3.Symbiosis
Along with good education,these also provides good platform to boost their skills .These universities provides assured placements along with high standards of education.Lovely Professional University is having a tie-ups with more than 50+ countries providing an international exposure to its students.

It depends on an individual's interest and level of comfort.Understand the streams and the work profiles that they offer. Ask yourself what you will be comfortable doing in a long run and then make the decision.As for the scope, everything has equal scope if you have the talent.Here are some of the courses,you may select any based upon your interest:
1. Mechanical Engineering
2.CSE Engineering
3.Civil Engineering
4.Electrical Engineering
5.B.SC
but it is suggested to choose the college carefully as it matters a lot for your placements and package.Here are some of the colleges where you may apply:
1.SIBM
2.VIT
3.Lovely Professional University
4.BITS
These along with good education provides an excellent platform to bring your innovative ideas into practice with good placements.it provides an unmatched entrepreneurial skills to their students that leads them to be an efficient managers.