IIT

Hello Aditya,
These days questions in physical chemistry are simple and conceptual. Most of them are based on the concepts that JEE have covered in previous papers.
Just read Pradeep's class 11 and 12 text book and do go through the HOTS section.
After that, solve previous year questions.
For inorganic Chemistry too, Pradeep's books are sufficient.
For Organic Chemistry, you may refer Cengage books. However, you have to be choosy about the topics you read from that book as too much extra material is given.
For Qualitative Analysis, read the last chapter of Cengage's Inorganic chemistry and solve all questions. This is one part where you don't need to apply much brain.
Generally, JEE (Advanced) asks 2-3 questions every year from this part.
Solve past 10-12 year question papers first. This gives you a better idea of the nature of questions being asked.
Don't follow Himanshu Pandey or Balaji publication books for Organic chemistry. You'll end up wasting a lot of time and gain only 2-3 (tough) questions.
It's better to invest the same time in some other topic and gain more questions.
Remember, competitive exams are not about your selection, they are about other's elimination.
So, it's the no. of questions that you solve correctly those matters, not the no. of tough questions that you solve.
All the best.