B.Tech

https://www.shiksha.com/b-tech/resources/ts-eamcet-college-predictor
Please go through the link I am sharing to get idea about it.
All the best.

Definitely, you can, but you can do in some area only, as from me, I am doing my aerospace engineering and in my field, I am studying avionics subject which is taught by ECE faculty, because avionics is based on fully electronics. So, you can go with Masters in aerospace engineering (Avionics), if you are interested.

https://googleweblight.com/i?u=https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor&grqid=GanbZ-36&s=1&hl=en-IN
Please go through the link for the same. This is the college predictor link. Best of luck.

Hello,
You have to appear in the LEET exam organized by almost all states and then you can get admission to any college according to marks obtained in the LEET exam. Many private college also take admission on the basic of your Diploma marks above 60%.

Yes, you took a good decision. Though you might not have got any colleges through your JEE and COMEDK rankings, you took the perfect decision. Still, try for core branches such as CSE or ECE.
Best of luck.

Yes, you can take admission in Maharashtra for B.Tech by Lateral Entry. For that, you must have completed a Diploma in the respective branch to be eligible for the lateral entry programme. After completing your Diploma, you write a special examination for enrollment in the institute. You will get direct admission in the second year of engineering.
Best of luck for your future.

You have to do B.Tech in Civil which is of 4 years then you will get a B.Tech degree (Certificate). There are total 8 semesters in B.Tech, you have to clear all of them in 4 years.
Best of luck for your future.

Yes, you can definitely get admission in Coimbatore Institute of Technology (CIT). For BE in Information Technology (IT) with the cut-off of 190.75. While taking admission class 12th percentage is also calculated.
Best of luck for your future.