The Doctrine of Lapse was introduced by _____?

The Doctrine of Lapse was introduced by _____?

وقفے کا نظریہ _____ کے ذریعہ متعارف کرایا گیا تھا؟
Explanation

Lord Dalhousie took over as Governor General in 1848.

'Doctrine of Lapse' was also formulated by Lord Dalhousie.

The Doctrine of Lapse was first applied in the year 1848 to the State of Satra.

The Doctrine of Lapse was introduced by Lord Dalhousie (1848-1856) in the year 1848.