Analysis of information sources in references of the Wikipedia article "Atwal" in English language version.
p. xlvii: Only about 200 Sikh family names in Britain are not also found in the Hindu community; these include Atwal, Chahal, and Johal, which are all Jat clan names. ... p. 97: Atwal ... Variants: Athwal ... Indian (Panjab): Sikh, based on the name of a Jat tribe.
