The Gold Coins of Jehangir

Lalmohan Babu— Lalmohan Babu, also known as Mr Ganguli and Jatayu, is Feluda's friend and a writer of thrillers who accompanies him on investigations.

Calcutta— A major city in India, now known as Kolkata.

Amaravati— The name of Shankarprasad Chowdhury's ancestral house in Panihati.

Ambassador— A popular model of Indian car, used for the group's journey.

Baikuntha Mallik— A poet and teacher at the Athenium Institution, admired by Lalmohan Babu.

Ganges— A major river in India, considered sacred in Hinduism.

ghat— A series of steps leading down to a river, used for bathing or religious purposes.

paan— A preparation combining betel leaf with areca nut and sometimes tobacco, chewed for its stimulant effects.

bed tea— Bed tea, also spelled bed-tea, refers to tea served in the morning, often brought to one's bedside as a customary practice in India.

sari— A traditional Indian garment worn by women, consisting of a long piece of cloth draped around the body.

veranda— A roofed platform along the outside of a house, common in Indian architecture.

alta— A red liquid dye traditionally applied to women's feet in India, especially during festivals or weddings.