I believe at a rank of 246 in TS PGECET in ECE Branch, you have fair chances in securing a seat ar Osmania University, JNTU Hyderabad, Kakinada or Ananthapur. All the universities have excellent ECE Departments with good infrastructure and faculty.

However my advice for you would be, if you have no issues and are willing to take a gap, prepare for GATE ( ECE ) next year and secure a seat in one of the Top IITs and IISc Bangalore for Masters Degree.

For more information do follow the link below

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