K-Sagar offers different versions of this text to suit specific exam needs:

| Feature | K Sagar Textbook | NCERT Textbooks | S. Chand (Lakhmir Singh/Manjit Kaur) | | :--- | :--- | :--- | :--- | | | High (Competitive level) | Medium (Board level) | High | | Language | Moderate | Simple | Moderate | | Availability | Paid (Hard/E-book) | Free PDF (Official site) | Paid | | Best for | CBSE + Olympiad prep | CBSE basics | General reference |