Hello Dinesh


You can get previous year question papers of HBSE board for biology and other subjects by going through our page for which link is provided below

https://school.careers360.com/articles/hbse-12th-question-papers/amp

These past year papers will help you to understand the types of questions which are asked in exam, you will understand the important topics which are covered in the exam by practising them, you will also get to know your preparation level .Best of luck for your examination.

Thankyou