Will deed

My father passed away in June, and has left  will  on 100 Rs bond paper which is not notorized but signed by two witnessess and doctors certificate.

me and my sibling  and mother dont have the problem with his last will. He own a agriculture land  and one four wheeler on his name , can be it transfer to respective beneficaries based on this will. we from Jalna ( Maharashtra , India).

my second question is probate of this will is necessary in court.