______ was known as a unit of measurement of land before the British rule, the size of the land varied, in Bengal the British standardized it to about one-third of an acre.

The correct answer is Bigha.Bigha is also a UNIT of measurement of LAND area varying locally.Raja Todar Mal is best KNOWN for the introduction of land measurements, Dahasala.In central India, Bighas were standardized at 3025 yd2(2529.3 m2) or 5/8 acre (0.2529 hectares). Different MEASURING units used in North and central India-Hectare is a commonly used measurement unit in land sale, planning and agriculture. One hectare is equal to 100 acres and 10,000 square meters.Biswa is a land measurement unit commonly used in Uttar Pradesh, Punjab, Haryana, Uttarakhand and Himachal Pradesh. Although the value varies from one place to another, 1 Biswa comes between the ranges 50-150 square yards. Biswani is a unit commonly used in Uttar Pradesh, Punjab, Haryana, Himachal Pradesh and Uttarakhand. It is calculated as 1 Biswa = 20 Biswanis.Killa denotes an acre of land in Punjab and Haryana.Gaj is a unit commonly used in Delhi, Punjab and Haryana. It denotes one square yard or 9 square feet.Kattha is a unit used in the states of Assam, Bihar, West BENGAL & Madhya Pradesh.etc.