Yudhvir asks: “Hello Sir!!! I m in 11th!! I want to do less work & more benefit!! I don’t like to study at all!!…but i have decided to do only DC Pandey!! is it enough for IIT preparation???”
Answer: No pain, no gain!
Whatever be the book you follow, understanding the basic concepts is all the most important. Make sure that you can solve all the solved and unsolved exercise in CBSE text book. These questions are originally set by a group of experts who are also among the question paper setters for IIT JEE. If you can solve the NCERT text book problems with ease, you have acquired the required standard. Then you may take up any book for solving additional problems.
If you have any doubt, feel free to ask here.
Best if luck!