I have qualified in jee main so can i get admission in anna university thu jee mains marks ??

Hello student,
One thing to understand is that Anna University does not accept admission on the basis of JEE main examination. To get admission in Anna University, one should apply for the TNEA counseling and choose the colleges of your choice. Around 150 colleges, all affiliated to Anna and participate in the counseling. So, the admissions are purely based on your 10+2 marks and not on anything else. To check your ek for TNEA, you may go thru the following link
https://www.google.com/amp/s/engineering.careers360.com/articles/tnea-eligibility-criteria
Good luck