my marks in kcet pcb is 93 which course would i get a govt seat and what would be my rank in biology section

Hello Siddhartha. If you have obtained 93 out of 180 in PCB section, then as per previous years' data your rank may lie somewhere around 3501 – 4000 ( although it is hard to predict exact rank as the cutoff as well as marking scheme changes every year in KCET). To predict your rank according to your marks obtained, you can refer to this article:

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

Since, you didn't mention the caste where you belong to as well as other information about you, I assume you belong to General category and General Merit -sub category; you do not belong to Hyd-Karnataka border as well as your Your Class 1-10th Education Type was Karnataka Medium. If you belong to any other category or sub-category then kindly update that information in the comment box below.

Well, as per your performance, you can have good opportunity to get chance at few Public/Government Institutes such as:

1. University Visvesvaraya College of Engineering, Bangalore
2. College of Agriculture, Bangalore
3. College of Agriculture, Hassan
4. Dairy Science College, Bengaluru
5. Dr Ambedkar Institute of Technology, Bangalore
6. University BDT College of Engineering, Davangere
7. Government Sri Krishnarajendra Silver Jubilee Technological Institute, Bangalore
8. Government Engineering College, Hassan
9. Government Engineering College, Mandya
10. Government Engineering College, Chamarajanagar

and more...

Apart from that you have good chances to get admission at various Private colleges as well. If you want to get a detailed report on your eligibility for various streams at different colleges based on your performance, I encourage you to check out KCET 2021 College Predictor Tool:

https://www.careers360.com/kcet-college-predictor?ici=cp-listing_root&icn=KCET-College-Predictor

I hope you find this information helpful.

Thank you and all the best for future!