Hey there! yes 25% intermediate marks are added to AP EAPCET score while calculating final ranks. ( 75% weight is for EAPCET marks and 25% is for intermediate marks in PCM or PCB).Since your niece studied intermediate in Telangana, her marks are not automatically available in AP EAPCET system. That means you have to upload her marks manually. You will be asked to upload the marks during the counselling process, usually in the certificate verification stage ( after results are announced ).

What you should do:

• Keep her Telangana Intermediate marks memo (10+2) ready - both 1st year and 2nd year.
• During AP EAPCET counselling, when the certificate verification happens:
• You may be required to enter marks manually online or
• Upload scanned copies of the marks memo.
• The EAPCET authorities ( APSCHE) will calculate the 25% weightage based on the marks you provide.

If you need further assistance with counselling process and admissions  feel free to ask! All the best!