CLAT

Frankly speaking, No. If one will prepare for CLAT seriously then he will not have to prepare for other exams separately as almost all the portions are covered in CLAT and if one has a command on all the portions, one can crack any of the law exams easily. Almost all the exams for law cover the legal portion, G.K. portion, reasoning portion and english portion. So if one is preparing for CLAT and commanding on all the portions one will surely qualify CLAT one is just needed to go through the patterns of the different law entrance examinations. As in CLAT say for G.K. portion one has pay more attention for current affairs section than static portion. For other examination one has to see whether the portion of current is more or static. But overall by true and honest preparation of CLAT one does not need to separately prepare for other law entrance examinations. But one MUST prepare and command all the portions of CLAT for cracking other law examinations.

Hey,
Let me cut all the unnecessary stuff and come directly to the question that you asked. I hope you are aware of the pattern of AILET and how is it different from CLAT. If you are not aware, CLAT is a 200 marks exam with negative marking of 0.25 for each wrong answer. The exam is conducted online and has to be attempted within 2 hours. AILET, on the other hand, is a 150 marks, an offline exam with no negative marking.
Coming to the syllabus part, there is no much difference in the syllabus except for the fact that AILET tests your in-depth knowledge of a subject. So, you would have to focus more on static history portion. Further, the level of questions in Maths and Logical Reasoning section is better than that of CLAT. So, when you start preparing, apart from the basic questions you do, go for advanced questions that will help you improve your accuracy and time management. Further, devote sufficient time to static history as well. In Legal section, there is not much of difference so the preparation for CLAT is sufficient for AILET with respect to Legal section.

Hello,
Well, there are online platforms for CLAT and some of them are effective even.
For eg. Career Launcher provides for an online coaching and through your Id you get all materials mocks and other requisites.
Apart from CL, Clat Possible also provides for same and in southern India and western India, there are online platforms provided by Law Prep, Endeavour and Sriram.
However, as a student of law, I would suggest that these platforms are helpful only if you are disciplined enough to work out for it attracts more distractions and also while a physical coaching does help you stay motivated and a practice is thus made.
You also get into touch with students and learn a lot. The teachers also provide better when consulted personally.
You get more disciplined in short.
But, yes, if you believe that you will be able to concentrate and be motivated then you may opt for any of them I.e. career Launcher or CLAT possible. The material is same as in the classroom programme.
My advice still is to join a physical classroom programme.