Hope you're doing good in this pandemic situation.

Don't feel small. Let me tell you straight that yes you have chances of getting a BSc microbiology seat with your rank. You won't be able to get top colleges in Andhra Pradesh but you should be happy that you would get at least your preferred course to study.

You have chances in PVKN Government ° College, also in Jawahar Bharathi ° College. So congratulations.

You should definitely check out the college below:

https://www.careers360.com/colleges/sri-vidyanikethan-degree-college-ranganpet/bsc-microbiology-biochemistry-and-chemistry-course

Hope I helped if you have any more doubt you can ask them in the comment section.