Hello Manisha,
TNAU 2019 cutoffs have not been released.The exam is conducted for admissions to Tamil Nadu Agricultural University for coursea including B.Tech,Bsc,M.Tech,M.Sc,MBA and Ph.D.UG courses admissions are provided in 12 disciplines.
Now the cutoffs change with respect to various factors.Now they are difficult to predict.The cutoff is prepared on the basis of the following factors:-
1) Difficulty Level of Exam
2)Number of Applicants
3) Previous Year Cutoff Trends

You may visit the official website of TNAU for the cutoffs.Now there are seperate lists for NRI Quota,Ex Servicemen Quota,Descendants of Freedom Fighter Quota and also Sports Quota.
Thank You.