From 15 July, 1857 to 20 January, 1858, the center of the revolt in Bihar was—

Correct answer: (d) Jagdishpur

Explanation

The center of the Revolt of 1857 in Bihar was Jagdishpur, where the zamindar Kunwar Singh assumed leadership, overthrew British authority, and established his own government. The Bihar revolt was suppressed by William Taylor (1855–57 A.D.), Commissioner of the Patna Division (Commissionery), and Major Vincent Eyre of the Bengal Artillery.