To get admission to in MBA at JNTUH, you have to take the TS ICET and qualify it. You have to get a rank in 3 digits. If you are from OC, the cutoff rank goes below 300. For caste reservation, the rules of ICET are followed. The total number of seats is around 40, but the seats are usually not filled completely.
You can also seek admission as an NRI student and take the exam for that particular category. The fee, however, is 10 times the ICET fee. Also, only 2 to 3 NRI students are admitted in a single batch. There is also the CMU option in which you study for 1 year at JNTUH and another year at Michigan University. It is a separate batch and contains 20 students.
The MBA faculty over here is great and highly experienced. You will thoroughly enjoy the classes. You will have to work hard and secure a good rank in the ICET exam to secure your seat for the MBA program at JNTUH.