Exam

You will get the admission, but you need to wait till the 3rd round.

No, polytechnic is a 3 years diploma which is equivalent to a 10+2 qualification and not a degree. He has to complete his graduation with minimum 50 percent marks first in order to be eligible for CAT as well as other entrance examination for admission to an MBA program.

It is very dicy to get into MMS with 98.48 marks in an all India exam. So, in any all India exam you at least need a 99.5 percentile marks to stand a chance. However, 98.2 percentile marks in MH-CET may stand a good chance for making it to MMS.

Hello Dhruv,
As per your MHCET score, you will definitely get very good colleges, so look forward for it only via JEE Mains as you will not get any good one, however, check here for more insights:
https://www.shiksha.com/b-tech/resources/mhcet-college-predictor

For Undergraduate scholarships in US universities, the best program in India is The Next Genius Scholarship Program.

Please check the link provided in the answer for complete detail about the college:
https://www.shiksha.com/b-tech/resources/upsee-college-predictor

I don't think getting admission in Secena College should be difficult with the academic performance you have.