Chaitanya Bharathi Institute of Technology, Hyderabad

No I'm afraid not, since there are only a limited number of seats available for everyone, and will be filled by people with less than 1500 rank in CBIT.
See, I had got a rank of 706 in TSICET 2017 but still I did not get seat in CBIT because I'm OC. The chances of you getting a seat in top 10 colleges even though you're BC, but with 9293 rank is nil. But there are some other good colleges in Telangana such as Bhavan's Vivekananda College. Loyola etc where hopefully in counseling you may get seat.

No I'm afraid not, but try counselling if you're not OC open category and maybe you can get good colleges but not OU or CBIT.
I got a TS-ICET rank of 706 in 2017 and I still didn't get OU or CBIT seat, and I was OC.

No, you won't. I'm afraid the free seat you were expecting lies on the rank of 1-250 rank in TS-ICET.

It will cost you around 1.21 Lacs per year for the Indian students and 3.25 Lacs for the NRI quota students.

Kindly mention to the below link for the exact and official fee notification:
http://www.cbit.ac.in/files/tutionfee-2018-19.pdf
Moreover, summarizing, it's 2 lakhs per annum for Indian students and 5000$ for NRI students for the academic year 2018 - 2019.

Hello dear,
Use your TS EAMCET 2018 rank to see where you can get admission at the link provided below:
https://www.shiksha.com/b-tech/resources/ts-eamcet-college-predictor
Best of luck to you.