Hello Venkata,

It would be difficult to provide you the exact information about the cutoff rank as it varies every year depending on the various factors such as Difficulty level of the exam, No. of candidates appeared for the exam, Performance of the candidates etc. However you can check the previous year college Allotment list which is officially available to take an Idea about it.

https://tsecet.nic.in/college_allotment.aspx

Good Luck!