CBSE 12th

The admission procedure starts as soon as the results are out, so once you get your 12th board results, you have to fill an online application form and then you need to check the colleges that provide B.A. in Mass Communication. The cut-off for the course will be available on the official website of the college. Also many colleges conduct an entrance exam for the same, so please keep checking the official website of the colleges.

Hi,
So, your marks are low as minimum of 60% is required, so you can give exam next year by improving your marks or you can opt for any other course.
Good Luck.

Yes, you are eligible for BBA with this much percentage. Science stream students are eligible for every course.

Yes, you can get admission in BCA after class 12th Science.
The minimum eligibility criteria to pursue BCA course is minimum 50% marks in 10+2 with English.

You can refer the following link for the detailed information about the admission procedure at Government Polytechnic Pune.
https://www.shiksha.com/college/government-polytechnic-pune-shivaji-nagar-4235/admission
For the information about direct admission in second year you need to visit government Polytechnic. They will tell you whether they give admissions directly in second year or not. If yes, they will tell you the procedure for the same.

If you want admission in Anna University, you should score more than 98% in 12th. To get admission in VIT, you need to appear for VITEEE exam and with a good rank in that, you can get admission.

Yes, the candidate must pass class 12th or equivalent exam with PCB and English from recognized board with 55% for General/OBC (50% for SC/ST candidates).
Good Luck.

For taking admission for Hotel Management, you need to give entrance exam CET of hotel management and then you can take admission for hotel management.

After your class 12th, you have many option such as:
B.Com
BBA
BBM
BA
B.Com+CA
B.Com +CMA
B.Com+CS
LAW.