Hello saksham.

There are alot of publishers available in the market that publishes JEE material.It's quite normal to be confused about that.Well,Wiley Plancess study material in definitely good for IIT JEE especially for physics and chemistry.For maths,you can also try other books like that of Balaji publication or arihant.Questions and content are good in all the books,you just need to concentrate well.You can surely go for Wiley Plancess.Hope this helps.

Good Luck!