hello vamsi!!
with 84percentile in jee mains and under  obc quota you would be getiing the following govt colleges :

Ujjain Engineering College, (Formaly Govt. Engg. College Ujjain(UEC) (1966)

Chemical Engineering

Deenbandhu Chhotu Ram University of science and technology , murthal district sonepat

Civil Engineering

University Institute of Technology RGPV, Bhopal (1986)

Computer Science Engineering

Dr. A. P. J. Abdul Kalam University Institute of Technology, Jhabua (Constituent College of RGPV)

Computer Science Engineering

Dr. A. P. J. Abdul Kalam University Institute of Technology, Jhabua (Constituent College of RGPV)

Mechanical Engineering

University Institute of Technology RGPV, Bhopal (1986)

Electronics & Communication Engineering

and many other colleges...

I m providing you a link for  knowing colleges in which you can get a seat for your rank  in JEE MAINS  and category,please see the following link :

https://engineering.careers360.com/jee-main-college-predictor

Https://engineering.careers360.com/jee-main-college-predictor?utm_source=C360&utm_medium=qna&utm_campaign=jee-main-college-predictor

All the best

Thank you