MBA/PGDM

You can go for computer courses, there are lots of courses available in market which requires no maximum percentage, If you are creative minded then you can learn some graphics designing course, UI Design course, or if you have technical skills you can go for programming languages. It will help you to find good job in market. Apart from it you can do freelance work too.

Nice question. I have similar doubt.

Yes, you can do. But, you can not get good university.

Useless- means used less. So, make yourself available for use of others. If you love gaming, then instead of doing MBA go for animation and designing. In that case, you can carry your use-less attitude with some future prospects.

Check every aspect of your Curriculum Vitae. They verify it threadbare. Their interview is also very much searching. So, make it a point to fulfill all their requirements. They have very good means of verification and they don't leave even a single point.

Placements are not very good, but yes both marketing and finance companies will come to the college. I can't say about the highest package as it is not fixed.

Yes, you can pursue MBA this year and in MBA, your work experience will be counted and also after MBA, your value will be raised. So, I think you can go for MBA.
Good luck.

There are many other better colleges than Doon University. For BBA and MBA, you can also check for DBIM, RCBS-Kochi, XIME, etc. which is the best in the country for MBA. But as per your question my answer is direct NO as Doon university is not good as per my view in various attribute and factor.

No, if you are fresher or working somewhere with work ex of 2-3 years then IMS Ghaziabad is not a good option. I would say you should take a year drop and prepare for MAT CAT CET again for colleges like IIM, SPJIMR, JBIMS, SIMSREE, FMS, Great Lakes. You will be definitely able to convert tier one B-School. Yes, if age factor is affecting, too much of education gap is there, have a job and just want MBA degree for salary hike or to delay marriage (haha).

Mathematics is helpful for CAT & other exams but not compulsory if you're not interested in math. So, you can leave maths.
Good luck!