If it is for Undergraduate courses like BE/BB.Tech, then you have to appear for TNEA Counselling conducted by Anna University. Anna University has no entrance examination and the admission is through TNEA which is the counselling process. The admission to BE/B.Tech courses is conducted on the basis of merit scored in 12th. As many as 563 Institutions participate in TNEA Counselling. Though TNEA is primarily for Candidates who fulfil the Nativity criteria, few seats are also allotted for Candidates out of Tamilnadu. This number is approximately 50. The University has not released TNEA application forms yet. Once Anna University releases the online registration process, you need to register and appear for counselling.