MAT

Yes, it is valid but the thing is that in which college, you want to take admission? They will see that your marks is above eligibility criteria or not.

No ,you can apply in the next year.

Hello,
Your score is good for admission purpose as per previous year selection procedure. But for this, there are some changes in the selection process and policies so cannot say whether you'll get admission or not.
But your score is good so everything depends on your GD PI
Good Luck

Top MBA Colleges in India Accepting MAT scores are mentioned at the link provided below:
https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india-accepting-mat/2-2-0-0-306
Top MBA Colleges in India Accepting ATMA scores are mentioned at the link provided below:
https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india-accepting-atma/2-2-0-0-9180

First, shortlist the colleges based on the last year cut-offs. Then, you can directly apply to the college of your liking from the shortlisted colleges. You have to visit the college or fill the form online if applicable.

You can go for MBA in supply chain management or logistics management.

Hi Kunal,
You have got a good score in MAT and you have higher chances to get selected.
Fill the application form online and wait for the first list of GP/PI.