Don’t just download the PDF and let it sit in your “Study Material” folder. Use it. Open and analyze your own Spotify listening history or YouTube watch logs. That’s entertainment and education.
Share the physical cost with a study group. Buy one book for a group of 3-4 friends. Scan only the "Solved Exercises" section (which is generally allowed for personal academic use). Sumita Arora Informatics Practices Class 12 pdf