Dear aspirant,
As you have mentioned that you have give EAMCET 2021 and you are expecting 18k rank in general and taking into consideration that you have ews category so let me tell you that it's a bit difficult to predict the exact situation.
Various factors are considered while deciding the cut offs like number of candidates appearing in the examination number of vacant seats in college, previous years cut offs.
For more information you can check out the link given below -
https://engineering.careers360.com/articles/ts-eamcet-cutoff
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