There are many specialization in MBA. Here I list out the top 10 MBA courses.

1. MBA Finance
2. MBA Marketing
3. MBA Human Resource Management
4. MBA International Business
5. MBA Banking & Financial Services

Apart from this you can study MBA-General too. But its totally depend on you. Because just check the syllabus and its match you. From the below link you can find the list of top MBA courses and details.

https://bschool.careers360.com/articles/list-of-mba-specializations-in-india

Hope it helps.

All the best.