Hello Abir,

There are a lot of books which one can refer for English class 12th but from my personal experience, I would suggest you to either go for u-like sample papers or together with. These would be sufficient in addition to the CBSE books. You can also check the link for https://school.careers360.com/articles/cbse-class-12-english-preparation-tips to get the detailed preparation tips.

Hope your query is well answered!

Good Luck!