You can either download it directly from the link or they can use the steps given below for it. Check the released key on their official web portal for the Bihar Board 12th History Paper Solutions 2020.
**Download Answer Key > BSEB Inter 12th Sent Up Maths Answer Key 2020
**Answer Sheet > http://solvedanswerkey.co.in/category/answer-key/
Source of Link > http://solvedanswerkey.co.in/