I provide previous year biology question paper in below list and this paper will very helpful for upcoming 12th students. all papers are for english as well as hindi medium students..
you can download all paper without any problems.
 direct download link is given in below of all sets. 
                                       


   2019download biology paper 1/2/57                                                                                         
   2019 download biology paper 2/2/57
   2019 
download biology paper 3/2/57
   2019 download biology paper 1/3/57
   2019 download biology paper 2/3/57
   2019 download biology paper 3/3/57
   2019 download biology paper 1/4/57
   2019 download biology paper 2/4/57 
   2019 download biology paper 3/4/57           
   2019 download biology paper 1/5/57
   2019 download biology paper 2/5/57
   2019 download biology paper 3/5/57
   2019 download biology paper 1/57
   2019download biology paper 3/57
   2019download biology paper for blind 57(B)