Hii

It is different in all the aspects. Similarity lies that all are for LAW studies. CLAT is basically a course after 12th for 5 year LLB program.You need 45% in 12th to apply for this exam.There is max age limit to 20 years for General.

DU-LLB is for 3 year LLB program after graduation. You need 50% in graduation to apply for this exam. There is no maximum age limit criteria as such defined. Preparation for both can be done with a book in general named as universal guide.

In AILET is for 5 year LLB program-Candidates should have obtained at least 50% marks in his/her qualifying degree.There is no age bar to appear in AILET 2019 as per the Supreme Court’s stay on age bar in 2017.

All the best.

Hey 

All the three entrances mentioned above are tests for admission into different colleges and courses.

CLAT is an entrance test only for admission in the National Law Universities. The courses offered by NLUs are only 5 year integrated law, LLM, PHD.

AILET is an entrance test for admission only in one institute ie National Law Law University Delhi. Only NLU not taking admission under CLAT. The course here is also 5 year integrated law and LLM and other PG courses. 

DULLB is an entrance test for admission in Delhi University Law Centres for 3 year LLB courses. PG courses are also there. There is no 5 year integrated law course.