Hi Vatsal Aggarwal.

To pursue PGDM or any equivalent post graduate course one need to maintain at least 50% in the Graduation degree or an equivalent CGPA of 50%. See CGPA to percentage conversion criteria is decided/specified by the institution/ university you are currently enrolled in. So, make sure you go through it and then reach to a final outcome. If you still want to get a rough idea, then convert this by using google into CGPA. Prestigious colleges such as IIMs only specify the minimum percentage criteria because this is considered to be absolute marking scheme.

Hope this helps.