CBSE 12th

Follow this link, you will clear your all doubts. https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/bba/exams/amp/ipmat&ved=0ahUKEwjRwYiWtrnYAhVEopQKHU6ODCcQFggjMAA&usg=AOvVaw2DZxBoFbYarV1sRoWbUslD&cf=1.

The candidate should have scored a minimum of 60% marks in class 10th/SSC and class 12th.

Different streams have different integrations and are available in several combos. The base UG remains the same, a PG degree varies. You should also add your qualification an interest to get the best response. You can check an example of MBA courses. https://www.shiksha.com/bba/articles/integrated-mba-programmes-in-india-blogId-15044.

No, it's not possible. You have to clear class 12th and after that, you are eligible for BBA as it requires 55% aggregate marks in class 12th for admission.

Class 12th marks are only relevant for seeking admission at UG level. For MBA, your marks at the graduation level matter. Focus on your graduation & MBA and try to get better grades. Getting a good job is a function of multiple factors like academic score, your personality, communication, behavioural attributes, etc.

To get more details regarding your question, you must visit the below link:
https://www.shiksha.com/courses-after-12th/arts.

Hello,
Academic score are as of now not required in FMS. So, you can target getting into FMS. For IIMs, it will be difficult in the ones like B or I giving very high weight to past academics. With 98+ percentile, you can get into 2nd generation IIMs.

Hi, I think that Arts is good for law.
Good luck!

While one can give CLAT only after 12th, there is no requirement of minimum preparation.

No stream has real advantage in CLAT. Since it is based on GK, Legal aptitude, Logical reasoning, English and Maths. At the most you might have advantage of Maths, but that again is 10th class level. You can prepare on your own or attend coaching classes.