Hi,
You must not have selected any seat in round 1 and 2, only then you will be eligible for spot round. You will have to visit the counselling centre with all your documents and TS EAMCET results.

The eligibility criteria for the special round in TS EAMCET is as follows-

• The vacancies shall be first filled with the internal sliding candidates and the final resultant vacancies shall be filled under spot admissions.
• The vacancies are to be filled first with those qualified in TSEAMCET-2020 and possessing 45 % (44.5% and above can be taken as 45%) marks in group subjects in respect of other than SC/ ST/ BCs and 40% (39.5% and above can be taken as 40%) marks in group subjects in respect of BC/ SC/ STs are eligible for spot admission.
• If the vacancies are still left, candidates without TSEAMCET Rank and passed intermediate or its equivalent examination with the percentage of marks indicated above shall be considered
• Candidate belonging to other state and completely studied there (Other State) and whose parents belong to other state and residing there only is not eligible for admission. He/ She cannot be considered even as NonLocal (NL) candidate to Telangana State for admission and ratification will not be given for such cases if they admit the candidate by violating the guidelines issued.
• Further the candidates admitted during institutional spot admissions are to be informed that their spot admissions are subject to ratification by the Convenor, TSEAMCET-2020 Admissions. In case spot admission given to a particular candidate is not ratified by the Convenor, He/She has to quit the college immediately.
• Candidates possessing Intermediate or its equivalent certificates other than those issued by the Board of Intermediate Education, Telangana/ A.P shall submit equivalency certificate from Board of Intermediate Education, Telangana.

Check the complete list of important dates here- https://engineering.careers360.com/articles/ts-eamcet-important-dates

Hope this helps.

Good luck.