Which doctrine led to the annexation of Nagpur Province by the British?

Q. Which doctrine led to the annexation of Nagpur Province by the British?
Answer: Doctrine of Lapse
Notes: Nagpur Province was annexed by the British in 1853 using the Doctrine of Lapse, following the death of Maharaja Raghoji III without a legitimate heir. This policy was applied by Lord Dalhousie, leading to direct British administration over Nagpur and surrounding areas.