Step 1: Understanding Ushr.
Ushr was a land tax in the Mughal Empire, which was a form of taxation on agricultural produce. It was generally set at 10% of the annual produce of the land. Ushr was a significant revenue source for the empire and was imposed on the cultivators.
Step 2: Analyzing the options.
(A) Land tax: Correct. Ushr refers to a tax on land, specifically 10% of the agricultural produce in the Mughal Empire.
(B) Sufi festival: Incorrect. Ushr was not a Sufi festival, but rather a form of land revenue.
(C) Grant: Incorrect. Ushr is not a grant but a tax imposed on agricultural land.
(D) None of these: Incorrect. The correct answer is (A).
Step 3: Conclusion.
Ushr was a form of land tax. Thus, the correct answer is (A).