Dear parth,

Based on my personal experience, DAS GUPTA is better...

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i think das gupta objective is better bcoz it contains iit level questions also and lower level questions also.now a days iit has become objective.so speed is necessary.that`s why das gupta objective is better.

das gupta subjective is a very gud book but not for beginners and it is not the speed booster.if u will buy ,u need to buy one more book for explained theory and some low level problems bcoz it contains high level problems even tougher than iit ,that u won`t able to solve in the beginning.

i think the best one is the kc sinha,for both beginners and advance.it contains both type of questions also.