Dear student,
     You can't get any management studies seat without any entrance. As per your Btech score you are eligible for management entrance exams and management studies.
Try to give state level MBA entrance exams
And some easy exams like
MAT, ATMA.
And try to get admission next year.

All the best

Hello student plz help me with the course and college/University where you want to take admission so that I can provide you exact information. Kakatiya University, Warangal on behalf of Telangana State Council for Higher Education (TSCHE) has released the result for TS ICET on June 14, 2019. The preliminary answer key for TS ICET 2019 was released on May 31. Students could raise an objection to the preliminary answer key till June 3, 2019.TS ICET 2019 exam was held from May 23 in two slots (Forenoon & Afternoon session) till May 24. The authorities released the TS ICET 2019 admit card in online mode on May 15..

Feel free to comment if you have any doubt
Good luck

Dear student, you can definitely get management quota seats in private colleges without writing ICET entrance exam. You need to pay pay a huge sum to the college as donation and pay heavy fees also. For this you need to visit respective college in which was taking admission and enquire about the same.