Yes you can. Nothing is impossible because the word impossible itself says that I am possible. So you can do that but it's fully depends on you. Time doesn't matter but only your hardwork matter. You have prepare yourself for CLAT very carefully. It is not easy to qualify the test. But it's not too hard to qualify this. If you have to do the selective study. Universal guide to CLAT & LLB is the best book to prepare for CLAT. You have to study with full concentration. Here smart study is important. So you have to do the smart study.