Somewhat useful resource for Btech students . . .
I maintain a Google drive since my first year to save any study material, lab work, assignment or PYQ. My batch uses it often. Although it's not perfect, especially for the first year. But since the first year syllabus is the same for all BTech branches, it might be useful. So here it is.
https://drive.google.com/drive/folders/1-rHMRpISQtH7Vk57NFTTNWR-6f\_7ctIV