Firstly, you should be very thorough with your Inter 1st and 2nd-year syllabus, and at least 60 days have to be spent on revision and mock tests practice to feature in the top rank. Memorizing important formulas and noting down important points at the time of the revision will help you achieve your target.
If you are very thorough with your Intermediate 1st & 2nd-year syllabus, 30 days are required to prepare for TS EAMCET. These 30 days have to be spent on aggressive revision and practice tests.