PGDM

PGDM expands to Post Graduate Diploma in Management. The main reason why postgraduate courses are named as PGDM is because when an Institute is an autonomous body (meaning it is not affiliated to any University) and conducts management courses then such Institutes cannot offer MBA degree. Even IIMs, XLRIs doesnt offer MBA degrees they only give PGP Diploma or PGDM since they are autonomous and independent bodies.

Business Management is just a name of the course, within this course you can opt for marketing, finance, strategy, operations, HR and other specialisations.