Hello Raghavendra,

Management has major domains like Finance, Operations, Strategy, Marketing, Information Technology, Human Resource and other minor domains.

Industrial and Operational Management is a part of Operations Management domain which come under the large umbrella of Management.

There are different courses regarding the specific subject you are looking to pursue. Firstly different online courses on Industrial & Operations Management. For this won't have prepare for any entrance exam.

You can check out the details here, https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.coursera.org/courses%3Fquery%3Doperations%2520management&ved=2ahUKEwj9-6C37ujhAhVLeysKHRhqDRkQFjAAegQIAxAB&usg=AOvVaw2sU7xXZ9_276L5uaXu17Ks

Other option is of doing an MBA keeping Operations Management as major. For which you will have to study for exams like CAT, XAT, MAH-CET.

You can check this link for details, https://www.google.com/url?sa=t&source=web&rct=j&url=https://bschool.careers360.com/articles/cat-when-and-how-start-preparations/amp&ved=2ahUKEwjvyoLk7-jhAhUbOisKHb40CC8QFjARegQICRAB&usg=AOvVaw3wpWyn9MB0MhMz31UyIRQD&ampcf=1

I hope you have a clearer idea after reading this.

All the best!