CBSE 12th

There are quite less chances for you to get admission in IIMS, as they take everything into consideration at the time of admission which includes work experience and in which Institute you have graduated.

You can choose integrated MBA programme, as you are not a graduate.

Yes, you can directly join B.Sc animation after class 12th. Kindly go through the link:
https://www.shiksha.com/animation/colleges/colleges-india?rf=searchWidget&landing=ctp

Maths is not compulsory for pursuing M.Sc Chemistry. Admission are based on your B.Sc score or entrance exam for M.Sc.

You need an Aggregate of 60% or more marks in the qualifying examination in four subjects: English, Mathematics and any two other subjects.
Selection will be based on the rank computed from the combined weighted average of percentage scored in the entrance test and the percentage scored in the qualifying examination where the weights are: Entrance Test: 65%, Qualifying Examination: 35%.
The entrance test will examine the following areas:
1. Quantitative Ability
2. Reasoning and Analytical Ability

Yes, you can join game design after class 12th. Good luck.

Yes, you can do animation course after class 12th.
Good luck.

The admission to the government college are based on the entrance exam and for this year admission process is completed. You should appear in next year.

Hello,I suggest you to use the Shiksha's predictor tool for more information and this will help you to predict the college according to your choice rank or percentile visit this link:-https://www.shiksha.com/college-predictor
Good Luck.