The name of R S Aggarwal comes out at top when it comes to maths, even my daughter has used this for covering all topics for competitive examinations. It has a-z all topics and covers them in depth so no matter what question comes in exam, one is prepared fully.
It is also updated every year. It covers the basics so well that advanced questions also become very easy to attempt.In this sense, it is the best book out there for quantitative aptitude.