 However real authority passed into the chamber of the Directors in London who considered that the Nawab and the Government's dignity still resided in the Nawab and his ministers.In 1770, during Bengal famine of 1770, a great epidemic of small pox raged in Murshidabad and killing 63,000 of its inhabitants, one of them being Nawab Nazim Saif ud-Daulah, himself.He died on March 10, 1770.