Hello aspirant,
Hope you are doing absolutely great.
So, with regard to your query, there will be no adding of 12th marks for the purpose of TS EAMCET exam, the 12th standard qualification is only considered for the eligibility of EAMCET exam it has nothing to do with the marks scored in 12th.
Further the EWS certificate is provided for the Economic Weaker Sections in the society, if you possess such type of certificate, then you will get reservation for the exam through which you will qualify for the exam with an average marks also.
Check out the link for any information regarding the TS EAMCET exam 2022: https://engineering.careers360.com/articles/ts-eamcet-eligibility-criteria#:~:text=As%20per%20the%20TS%20EAMCET,in%20their%2010%2B2%20examination.
Hope this helps you,
Thank you.
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