Hi Abhay,

Yes, you can prepare for CLAT in 30 days just go through the syllabus carefully, plan your agenda on daily basis and focus on each subject equally.

I would give you a comprehensive approach

 I would just like to add a few points from my side [this is from another answer that I wrote]. My advise would be to just go through the legal reasoning, legal knowledge and development part in these 15 days, and before you do that acquaint yourself with the format of the question paper. Just concentrate on the core basics and follow just one standard book. If you happen to have read the newspaper daily and have a good command of English and decent basic maths, you stand a good chance. Make a target of solving at least 7-8 model (or previous year) question papers in these 15 days. Probably the last two days can be dedicated to revisiting current affairs from a yearbook or an online resource. It CAN be done!

Good Luck!