30) Who among the following is known for his introduction of a new calendar, a new system of coinage and new scales of weight and measures ?

31) The Maratha Kingdom was founded by Shivaji during the reign of

32) Who succeeded Mir Jafar ?

33) In 1757, Siraj-ud-Daula was defeated by

34) The Peshwa become the official head of Maratha administration in the year