 He planned Jaipur city in six blocks separated by broad avenues, on the classical basis of principals of Vastushastra and another similar classical treatise under the architectural guidance of Vidyadar Bhattacharya, a Bengali architect from Naihati of present-day West Bengal who was initially an accounts-clerk in the Amber treasury and later promoted to the office of Chief Architect by the King.Following Jai Singh's death in 1857, there were internecine wars among the Rajput kings of the region but cordial relations were maintained with the British Raj.Maharaja Ram Singh sided with the British in the Sepoy Mutiny or Uprising of 1857 and established himself with the Imperial rulers.