How Should I prepare for IPM -IIM Indore in 1 year along with 12 CBSE Boards prepration?

This is a tough question but let me provide you with some suggestions which you may find useful. Having to know a lot of people from IIM Indore, I can share the information I acquired from them.

• Prepare thoroughly for your CBSE boards. You need to do well in these exams. 
• Both IIT-JEE and IPM-IIM Indore can be given another time also if required.
• You need to decide what you want to do.
• If you choose JEE, you are then going ahead with a technical career.
• If you opt for IPM, it will be completely different as it will focus on management.
• The IPM course is a 5 year integrated course. It used to be a diploma degree but has now transitioned to a degree course.

So, the first thing you need to do is decide which path you want to go. If your mind is scattered all over the place, you might make a mistake.

A lot of people choose Engineering+MBA. It is very much popular among students. But if you intend to do an MBA, then do not go for IPM. You can complete your 4 years of B.Tech or BE graduation. This will save 1 year. Then you can prepare for the CAT and opt for a normal MBA.