Hello, Aman I hope that your preparations for JEE are going well. If you are looking for a book that has less theory and more MCQs. then you can go for Arihant's ALL IN ONE series which has one book each for Physics, Chemistry and Maths each. These books contain very concise theory for every topic and a large number of MCQs which also consists of past year JEE questions. Thus, these books are also very good for quick revision as they give a quick overview of all important concepts. Hope this helps. 

Hello dear, 

For MCQ based book questions, you should  follow following books-

MASTER RESOURCE BOOK BY ARIHANT

PROBLEM PLUS IN MATHEMATICS BY A. DAS GUPTA

CENGAGE PUBLICATION BOOKS