Bhaskara II or Bhaskarachārya (1114 – c. 1185) was an Indian mathematician and astronomer who extended Brahmagupta’s work on number systems. Born in the obscure village of Vijjadit (Jalgaon) in Maharastra, Bhaskaracharya’s mathematical works called “Lilavati” and “Bijaganita” are considered to be unparalleled. In his treatise “Siddhant Shiromani” he writes on planetary positions, eclipses, cosmography, mathematical techniques and astronomical equipment.