[4] In 1916, Robert Vane Russell, an ethnologist of the British Raj period wrote, Agrahari,found chiefly Jubbulpore district and Raigarh State.
The majority of Agrahari Sikhs are found in the Eastern Indian States of Bihar Jharkhand and West Bengal.
[10] Other legend says that Agrahari Sikhs are a community of Ahom converts to Sikhism from the time of 9th Guru Tegh Bahadur Ji’s travel to Assam.
The majority of these Sikhs are found in Sasaram, Gaya and Kolkata of Bihar and West Bengal.
However, many people use Gupta, Bania or Baniya, Thagunna, Patwari or Vanik or Banik, Shaw and Vaishya or Vaishy or Vaish or Baishya or Baish as their surname.