1) Indian family name 
== Bengalis == ===Kayastha=== According to Indian historian Tej Ram Sharma, in Bengal the surname Dutta/Datta{sfn|Clark|2014|p=148} is confined to the Kayastha caste.{sfn|Sharma|1978|p=115} The office of Kayastha (scribe) was instituted before the Gupta period{sfn|Sharma|1978|p=115} (c.320 to 550 CE). Originally, Kayastha was composed of people fr...