How can I do my internship abroad after completing hotel management?

You can do your internship before graduating as well. After graduation, there are some companies who don't prefer an intern. Anyways, you can try for each and every hotel as I did and focus on Asia Pacific and UAE as these places have more chances than US or UK.

Hi Mohamed, please co-ordinate with your college and companies abroad who will be willing you an internship. You can also check various websites assisting with foreign internships. Check stipends and finances involved. http://aiesec.org/students/intern-abroad/