Anglo-Ind. [a. Urdu baṭṭā, Bengali bāṭṭā.] In Indian Banking, agio or difference in exchange; discount on coins not current, or of short weight. (Col. Yule.)
1680. Ft. St. George Consultations (1872), 17. Payment or receipt of Batta or Vatum upon the exchange of Pollicat for Madras pagodas prohibited.
1760. Fort William Consultations, June, 30. All siccas of a lower date … are bought and sold at a certain discount called batta, which rises and falls like the price of other goods.
1810. T. Williamson, E. Ind. Vade-mecum, I. 203 (Y.). He immediately tells master that the batta, i.e. the exchange, is altered.
