Hello Sejal, I can understand the confusion you must be going through as you are showered with plethora of options. But I would recommend that you choose one of them wisely. You can do so only by knowing more about these Institutes, which courses they provide, fee structure etc.

Institute of Management Studies, Ghaziabad
Since you are in 12 standard, and interested in doing BBA, let me tell you that this Institute provides only post graduate courses like M.C.A and P.G.D.M (Post Graduate Diploma in Management).

JK Business School, Gurgaon
It is a privately owned co-ed college. It was established in 2006. This college is affiliated with Maharshi Dayanand University, Rohtak. It's campus size is 10 acres with a faculty of 25 members. This college provides 3 courses, BBA, B.Com Hons and P.G.D.M.
The fee structure of 3 year BBA is 2.74 lakhs.

Admission process for BBA
• entrance on the basis of Class XII results
• Group discussion, written aptitude test and personal interview will be taken

Eligibility criteria for BBA
Students must have passed 10+2 exam from CBSE/ Board of School education, Haryana or cleared any other equivalent examination. Candidate must have secured a minimum percentage, i.e., 50% in any stream.

There are various facilities provided in the college like boys hostel, girls hostel, gym, library, cafeteria, auditorium, WiFi,  IT infrastructure, Alumni associations etc.

I Business Institute, Greater Noida
This Institute provides only P.G.D.M course, but it is really famous for this particular course. It was established in 2008.

Bharatiya Vidya Bhavan's Usha and Lakshmi Mittal Institute of Management, New Delhi
This Institute also provides only P.G.D.M courses which you can pursue if you want to but only after completing your bachelor's degree.

Institute of Management Studies, Devi Ahilya University, Indore
This college provides courses like M.B.A, Dual degree (in MBA), executive M.B.A, M.Phil., Ph.D, therefore you cannot pursue these courses just after your 12th class.
All in all, there is only one college that you can go for, i.e., JK Business School in Gurgaon.
To check more details about this college, visit this link: https://www.google.com/amp/s/www.careers360.com/colleges/jk-business-school-gurgaon/amp
All the best!
I hope this helps.