Colleges in Jaipur

For this answer, I would suggest you to contact the college authorities. You will get a particular response from there.
http://www.banasthali.org/banasthali/wcms/en/home/lower-menu/contact_us/index.html
You can go through this link.

Hi there,
The following courses are available at the college:- http://www.banasthali.org/banasthali/admissions/course.html.
Also, we do not have a 3 years LL.B course here. Kindly go to the above link for all the details regarding courses in the college.

Hi,
Candidates can obtain the application form from the institute and should send the duly filled application form to the Institute.
Eligibility Criteria: Passed 10+2 With (PCM) Physics, Chemistry and Mathematics or Passed Diploma in Engineering.
Please refer the link below for more detailed information:
http://stiajaipur.wixsite.com/stia/selection-procedure

Yes, you are eligible for admission in St. Xaviers, Ranchi for BA English. Minimum eligibility to pursue this course is that candidate should have cleared class 12 exams with Mandatory Subject : English. Admissions are based on marks obtained in 10+2. Interested candidates can apply online or offline with required information. Regards.

As per your given information, yes you are eligible for BBA.
All the best.

See, college can only provide you a platform now it's up to you that how you perform on the platform and what you learn from there. There are many non- IITian students who are better placed then some of the IITians. So, it's up to you that what you learn and implement it.