These are the weights and measures popular in North India before the adoption of the metric system. There were different systems in Bengal, the Presidency of Madras, and Bombay. The following nomenclature was prevalent in North India till the metric system came in:-
4 Chawal (grain of rice) = 1 Dhan (weight of one wheat berry)
4 Dhan = 1 Ratti (Ratti is the seed of the 'Abrus precatorius'. It is a red seed with a black spot at one end. Abul Fazl refers to it as 'Surkh' in Ain-i-Akbari.).
8 Ratti = 1 Masha
12 Masha (96 Ratti) = 1 bhari
24 Ratti (96 Dhan) = 1 Tak
Conversion
1 Bhari = 11.66375 gram
3.75 Troy ounce = 10 bhari
Weight of 64 Dhan (Wheat berries) = Weight of 45 Jau (Barley corns)
Weight of 1 Barley corn = 64.79891 milligrams