Hello student, Rajasthan Technical University conducts an entrance exam called Rajasthan Engineering Admission Process (REAP) you can appear in that exam if you are not satisfied with your JEE rank and you can secure good rank in REAP and secondly you can take admission in any college affiliated to RTU because you have good percentage in your 12th boards. RTU requires minimum 50% PCM percentage to get admission in it.

All the Best!