In 1580, Akbar instituted a new system called the Dahsala or the Bandobast Arazi or the Zabti system. Under this, the average produce of different crops as well as the average prices prevailing over the last ten years was calculated. One-third of the average produce was the state share, which was however stated in cash. The credit for developing this system i.e. Ain-i-Dahsala, goes to Raja Todarmal. This system did not mean a ten-year settlement but was based on average of the produce and prices during the last ten years. For the measurement of land, bigha was adopted as standard unit of area which was 60 × 60 yards. A new gaz or yard, gazi-llahi was introduced 41 digits (anguls) or 33 inches in length (Sher Shah’s I gaz 32 digit was discarded). For purpose of fixing the land revenue, both continuity and productivity of cultivation were taken into account. Land which were continually under cultivation were called polaj. Lands which were fallow (parauti) for a year, paid full (polaj) rates when they were brought under cultivation.