Who among the following formulated and implemented the ‘Doctrine of Lapse’?

Which of the following State was not annexed under Lord Dalhousie's Doctrine of Lapse ?

Who among the following was associated with suppression of thugs?

Who among the following was prosecuted for impeachment by the British Parliament?

Who among the following was the only Jewish Viceroy of India?

Who among the following called the Movements of Gandhiji as ‘Political Blackmail’?