Hello Shubham. You mentioned your rank in KCET 2021 but forgot to mention your caste in the question. Assuming you belong to general category and had Kannada medium as 10+2 Education Board, I will answer your question. If you belong to any other category, please mention that in the comment box below.

Well, based on previous years' data and your rank, you have good chances in the following government colleges:

1. University Visvesvaraya College of Engineering, Bangalore (BE in ECE, CE, ME)
2. Government Sri Krishnarajendra Silver Jubilee Technological Institute, Bangalore (BE in CSE, ECE, CE, Textile Tech.)
3. Dr Ambedkar Institute of Technology, Bangalore (BE in CSE, ECE, EEE, CE, ME, Instrumentational Tech., Telecom Engg., Industrial Engg and Management)
4. University BDT College of Engineering, Davangere (BE in CSE, ECE, EEE, CE, EIE, ME, IPE)
5. Government Engineering College, Hassan (BE in CSE, ECE, CE, ME)
6. Visvesvaraya Technological University, Belagavi (B.Tech in CSE)
7. Government Engineering College, Mandya (BE in CSE, ECE, CE, ME)
8. Government Engineering College, Chamarajanagar (BE in CSE, ECE, CE, ME)
9. Government Engineering College, Ramanagara  (BE in CSE, ECE, CE, ME)
10. Government Engineering College, Karwar (B.Tech in CSE, ECE, CE)

and more...

In other words, you have performed well in KCET 2021 and are likely to get chance in top-rated government as well as private engineering institutes during counselling.

To refer to the relation between marks and rank in KCET based on previous years' data, check out this article:

https://engineering.careers360.com/articles/kcet-marks-vs-rank

To know your college admission chances based on your Caste, Area Type, etc. & exam result and get your KCET personalised report with Top Predicted Colleges delivered on mail, I encourage you to use KCET 2021 College Predictor:

https://www.careers360.com/kcet-college-predictor?utm_source=qna&utm_medium=kcet_cp

I hope you find this information helpful.

Thank you and all the best.