Hello,

You can download last few years question papers of BSEB of all the subjects of class 10 from the link below

https://school.careers360.com/articles/bihar-board-10th-model-papers

Also, you can get model question papers from the official site of BSEB. After opening the official site go to the bottom of the home page. From there, you will find model question paper link under Secondary section. also, there are lots of study material available online. Just search it on browser and you will find handful of them.

Hope it helps!

Good luck!