Bro do not refer atkins. Atkins is way too much for JEE. Trust me. Unless you have a good mentor/teacher for chemistry for you to ask which parts to omit and which parts to read then please dont go and buy/read it. It is 10 times more difficult than learning from JD Lee, etc. Especially chapters like solid state and thermo and all just dont refer.
OP Tandon does have errors. But it would be a better book after weighing the pros and cons.