Engineering

Yes Polytechnic Diploma is eligible.

Yes, it is better than others universities because of the reason that I Let you know to tell you that both of the colleges are the topmost private engineering college across the country. Also it is true that every curiculam, academics and placements are totally dependent on CSE branch performance;
Be

If you are having Science stream in 12th, then no need of including best 4 subjects for admission in B.Sc. Courses, you have to include Maths (compulsory) and any 2 subjects from Physics Chemistry Biology or any other subject from the list of the subjects provided by DU. If you do not have Science i

You haven't mentioned your category. Assuming that you belong to general category you do not have chances of getting seat in CMR INSTITUTE OF TECHNOLOGY in COMPUTER SCIENCE AND ENGINEERING (ARTIFICIAL INTELLIGENCE AND MACHINE LEARNING. The cut off was 23597 for general category. The cut off this yea

It seems that you are asking for AP EAMCET, if not then kindly correct me in the comment section given below.
It is not possible to provide you an exact list of colleges, but we can predict some chances of your admissions in some colleges based on your rank because cut-off keeps on changing depending

Candidates need to acquire at least 250 or higher and a score of 85-95 percentile in JEE Main for getting into IITs through the exam. Candidates need to score 280-300+ in JEE Advanced to get CSE in IIT colleges.

To get an secure admission in GCET Jammu, One must have a rank below 700. If any candidate want to join a branch of their own choice then rank should be below 200. Your rank is a way high to get CSE. You may get an admission in the college but in CSE branch the chances are low. If you want to study

You can consider following:
Government Polytechnic, Obulavaripalli. Government Polytechnic Simhadripuram, Cuddapah. Sai Ganapathi Polytechnic, Anandapuram. Sri Varalakshmi Polytechnic, Machilipatnam. St Anns Polytechnic College, Prakasam. Vivekananda Polytechnic, Rangareddy. This above colleges are

EAMCET is an entrance exam conducted to get admissions in engineering colleges and medical colleges.
The cutoff rank for BC b category in Sri Vidyaniketan Engineering college are
CSE : 17000
INF : 67000
As your rank is 30000 you are eligible for Information technology branch in Sri Vidyaniketan Engineer

Yes, because of tech in Computer Science and Engineering is through State / National / University Joint Entrance Examination such as JEE Main or JEE Advanced. Candidates need to have qualified 10+2 with subjects like Physics, Chemistry, and Mathematics.