Exam

Proper book and genius guidance is required for selecting good path. If you are good in maths, RC, DI and LR then self-study is sufficient to increase the speed and accuracy but if you are not then go for coaching for good percentile.

It depends on your category.

You can get MBBS with 200 marks in NEET.

You only need to appear for the theory part.

Yes, you can pursue B.Sc.

Yes, you can join B.Sc course.

Yes, you can get admission in good private colleges such as O. P. Jindal and UPES through LSAT.

You need to give IMUCET exam conducted by IMU.
The last date has been passed out to 8th May so you can prepare for the next year as IMU conducts its CET twice a year
For further assistance, you may check:
imu.edu.in

JEE is better than EAMCET.

You can get into NITs, IIITs, etc.