Hello

With 80 marks in AP EAMCET as an ST candidate, your rank will vary based on total candidates and marks distribution.
Generally, ST category cutoff ranks are lower than the general category due to reservations.
An approximate rank might be around 10,000 to 20,000, but this can change yearly.
Your rank depends on the difficulty level and the number of test takers.
Official rank lists are published by the APSCHE after the results.
For exact rank, check the official AP EAMCET website or counseling portal.