Hello,

The exams you have mentioned cater to completely different fields, NATA is for architecture, and on the other hand NEET is mandatory for admission of medical courses such as MBBS, BDS, Ayush etc, NEET scores is also accepted for BSc Nursing, BPharm, BPT however in order to take admission in these courses NEET isn't compulsory, similarly say for engineering admission at ug level there are various entrance tests conducted at state/university level apart from JEE Main which is  the most popular engineering entrance exam conducted at national level, so there are various options as in if you don't want to appear for entrance test you can skip the route and opt for another one where admission is based on the merit of the qualifying examination, however there are certain courses such as MBBS, BDS etc where NEET is compulsory, and even if you're aiming for private colleges qualifying the entrance test is important,

now from your profile it seems you're a law aspirant from Tamil Nadu, you can consider applying for TNDALU which offers various courses in the form of integrated law course for a duration of five years, admission here is based on the merit of the qualifying examination, you don't need to appear for any entrance test, you can check out our page at https://law.careers360.com/articles/tndalu-admission to know more details regarding this, other than TNDALU you can consider other options such as Amity University Noida, KL University Guntur, Alliance University Bangalore, Sage University Indore to name a few.