Does IIM Indore accept CBSE 12th improvement marksheets in the IPM selection process?

According to my friends at IIM Indore, the institute does accept improvement marks. The minimum eligibility to get admission is 60% for the general category in the 10th and 12th standards.

You are required to score extremely well in the ATS, which is the aptitude exam. You have to score a minimum of around 50%. Other than that, you also have to perform well in the Personal Interview session, alongside the Written Assessment. Your admission will depend upon these three factors. 

Except that, the marks you achieved in your 10th and 12th standard are usually used only for the eligibility check, that is, 60%. The age limit is 20 years, for the general category.