Columbia subject headings:
Indigo industry--India--Bengal--History--19th century.
Indigo industry--India--Bihar--History--19th century.
Land tenure--India--Bengal--History--19th century.
Land tenure--India--Bihar--History--19th century.
Peasant uprisings--India--Bengal.
Harvard subject headings:
Indigo industry--India--Bengal--History--19th century.
Indigo industry--India--Bihar--History--19th century.
Land tenure--India--Bengal--History--19th century.
Land tenure--India--Bihar--History--19th century.
Peasant uprisings--India--Bengal.
Princeton subject headings: