Hello aspirant

hope you are doing well and safe. With reference to your query,  I would glad inform you that 30000 rank is not a good rank in ts eamcet for getting streams like cse ,it, ece. At this rank you can get biomedical engineering in some low colleges , so at this rank it is very difficult to get good colleges and good streams . I would advise you to start preparing for next attempt and refer the folllowing link for cut off:-

https://engineering.careers360.com/articles/ts-eamcet-cutoff

Hope you found this answer informative. Best wishes for your future