The role played by the coins in the decipherment of the Kharoshti script are:

a. The coins of Indo Greek kings who ruler in the northwest part of the subcontinent in the 2nd century BCE were analyzed by epigraphists.

b. The Indo Greek coins contain the names of kings written in Greeks and Kharoshti script.

c. Both the scripts were compared by Europeans scholars.

d. A few similarities were found such as the letter ‘a’ was used in both the scripts for writing names like ’Appollodotus’.

e. James Prinsep identified the language of Kharoshti as Prakrit.

f. After that, it became possible to read longer inscriptions easily.