Mathura, the erstwhile kingdom of the Solar and Lunar dynasties was the focal point of ancient Indian civilization and religion, which witnessed the convergence of Indian, Indo-Scythian and Hellenstic cultures. The district is strategically placed 145 Km southeast of Delhi and 58 Km north west of Agra.
James Todd writes:  Suraseni name was given to a large tract of country round Mathura, or rather round Surpura, the ancient capital founded by Surasena, the grandfather of the Indian brother-deities, Krishna and Baldeva.
Migration of Yadus
James Tod writes that the tide of Yadu migration during the lapse of thirty centuries, traces them, from Indraprastha, Surapura, Mathura, Prayaga, Dwarica, Jadu Ka Dang (the mountains of Jud), Behera, Ghazni in Zabulistan ; and again refluent into India, at Salivahanpura or Salpura in the Punjab. Tannot, Derawal, Lodorva in the desert, and finally Jaisalmer, founded in S. 1212, or A.D. 1156.