LLB

Hi,
Not all university has 3 years LLB course, and all those have conducted their own exam. Dull is considered to be the best. See this link for more information
https://www.shiksha.com/law/colleges/ll-b-colleges-india?rf=searchWidget&landing=ctp
Apply suitable filters from left columns.

Hi,
You can do a 3-year law course from DU/GLC Mumbai etc. Admissions are based on the entrance exam. See this link
https://www.shiksha.com/law/colleges/ll-b-colleges-india?rf=searchWidget&landing=ctp
apply suitable filters from left columns.

Hi
3 year LL.B. Is a graduate level course pursued after graduation in any other stream. If you want to specialize in laws like tax law, corporate law you have to do an LL. M. in those fields.

Yes, you can pursue a 3-year law course in Rajiv Gandhi University of law. See this link
https://www.shiksha.com/university/rajiv-gandhi-university-Arunachal-Pradesh-other-32725

Yes you can pursue LL.B. with maths and economics. You can opt for BBA LL.B. Integrated 5 year course.

According to CDS eligibility criteria 2020, candidates applying for the exam must be 20 to 24 years. Candidates who have passed graduation or appearing for their final year are eligible to apply for CDS exam provided they submit a relevant certificate of passing the examination at the time of commencement of course.

Since you dropped your LLB and also your colleges are different. You cannot resume your programme but go through the prospectus of the course provided by the college to know more about admission procedure, fees, eligibility criteria, etc.

Yes, you will have to appear in the entrance exam and score a very good rank to get admission.

You should have scored a minimum pass percentage either at the 12th level or graduation level. The percentages are 45% marks for General category, 42% for OBC and 40% for SC/ST categories. at graduate add 5 % to these.

For getting admission in law, you have to give CLAT exam and then only you can get admission.