How important was the income from the land revenue to the stability of the Mughal empire?
The main source of income for the Mughal Emperors was the income from land revenue. Land revenue was calculated after a detailed survey of the cultivated areas and the revenue was collected according to one-third of the produce.
The most important reason was the arrival of the British. Already succession problems were resulting in the collapse of the huge empire. There was a crack in the Mughal Empire, and it was deepened by the arrival of the British as they took ultimate control, colonized India, and made their own laws and rules, finishing Mughal culture for good.
The absence of any definite law to the mughal throne was an important factor that led to downfall of the empire. The death of a mughal ruler was always followed by war of succession between its rival claimants to the throne. It led to bitterness, bloodshed and frequent rebellions. The burden on treasury increased due to wars which caused the downfall of the empire.