Colleges in Rajasthan

No, there is no entrance test conducted by Jaipur National University for B.Sc. Shortlisted candidates are called for personal interview based on marks obtained in 10+2 level. Candidates are selected based on performance in personal interview. Interested candidates can apply online/ offline with the required information.
Please check for your eligibility to pursue this course from the criteria mentioned below:
https://www.shiksha.com/science/course/b-sc-jaipur-national-university-166847

Yes, you can do M.Sc in Big Data Analytics after completing B.Tech. On the basis of percentage of last year, you will get admission.

BITS does not offer lateral entry scheme.

As per the cut-offs, there are no chances.
http://www.bitsadmission.com/cutoffscores2017.aspx

Answering honestly, how could a degree in Diploma be equivalent to that of Bachelor's degree. No, it is never equal for the Bachelor's degree. I think you would better opt for MBA.

Hi Shubham,
There is no reduction of fees as such on the basis of the entrance. However, there are scholarships available during the course of study as Merit cum Need Scholarship or Merit Scholarships catering to the financial crisis in the family based on your CGPA obtained in the semester exams. Best Wishes.