If you want the class 12th UP Board reduced syllabus for 2021 then you can see it from the link provided below:

https://school.careers360.com/articles/up-board-12th-syllabus

These will not only provide you the syllabus but also you will get some of the important information regarding UP board.

For preparation tips you can visit the link provided below:

https://school.careers360.com/articles/up-board-12th-preparation-tips

I hope this answer helps. All the very best for your future endeavors!