What is the main difference between hotel management and hospitality management and what degree is needed for the same?

There is no difference. Hotel Management is one of the fields of hospitality management. Hospitality means a connection between guest and its host. Degree courses are: BHM B.Sc. BBA in hospitality BA B.Voc.

Dear Dhwanit Agarwal, Hotel management clearly specifies for hotel industry, whereas hospitality management also refers hotels include cruising, air lines industry, etc. All the best.