hello,

you may prepare side by side with your 10+2 courses exam. the amu entrance test consists of 4 section.

english grammar,

current afair,

reasoning and aptitude

general knowledge.

for current affairs you can follow bankers adda, tele graph, the hindu , read daily any news paper.

for general knowledge you may follow lucent gk. for reasoning question you can follow rs agarwal. there is a book by vision publication for ba llb course which will also help for preparation.