Disclaimer & terms of use
Last updated: October 3, 2026
These are a student's notes
Everything on this site is written or collected by me, Chetan Sharma, a polytechnic student. I'm not a teacher, and this site isn't run by or connected to HSBTE or any college. The notes show how I understood each subject and may contain mistakes. Syllabus and exam patterns also change between years and institutions.
Use the material to study and revise, and check anything important against your official syllabus, textbooks and teachers. I can't accept responsibility for marks or decisions based on what you read here.
Use it honestly
- Read and learn from the solved assignments rather than copying and submitting them.
- Follow your own college's rules on academic integrity.
Copyright
The notes and blog posts are my own work. You're welcome to read, download and share them with classmates for study. Please don't republish them elsewhere or sell them without asking me first.
Previous-year question papers belong to the examination board that set them and are shared here only so students can practise. If you own the rights to something on this site and want it removed, contact me and I'll take it down.
External links
Some pages link to other websites and to files hosted on Google Drive. I don't control those sites and am not responsible for their content.
Ads and privacy
The site may show Google ads. How that works, and what data is collected, is explained in the privacy policy.
Changes
I may update this page from time to time. The date at the top shows the latest version.