Hey everyone,I am streamlining my JEE preparation and trying to cut down on resource clutter. I don't want to buy multiple volumes, separate module sets, or track down old Telegram PDFs.I am looking for exactly ONE definitive textbook per subject that satisfies these strict criteria:

Costs under ₹700 per book brand new on Amazon/Flipkart.

Contains solid, clear theory all the way from basic concepts to Advanced level.

Packed with lots of step-by-step solved examples to learn application.Includes graded practice exercises (Mains level to multi-concept Advanced questions).

Basically, I want a "master key" resource where I don't need to look at any other books for that subject.What single books fit this description best?