William D. Crump (). Encyclopedia of New Year's Holidays Worldwide. McFarland. p. 113114. ISBN978-0-7864-9545-0., Quote: "Nabo Barsho ("New Year"). Hindu New Year festival in West Bengal State, observed on the first day of the month of Vaisakha or Baisakh (corresponds to mid-April). New Year's Day is known as Pahela Baisakh (First of Baisakh)."