The first question is: What is the dating of the oldest text? Using a scientific method like carbon dating.
I request it to become a featured article.. i spent some time on it, but by wahegurus grace, now its a nice article and layout etc is very good if not excellent). Sunnybondsinghjalwehra 20:11, 17 May 2008 (UTC)
Of all the groups mentioned , only Nihangs are proper. All other like Udasis and Nirmalas have been Anti-Sikh and worked for Hinduisation of Sikhi. The Udasis looked after Sikh Gurudwara during times of distress, but it was them who brought idol-worship and related practises into Sikh Gurdwaras. They are not what they were in Baba Sri Chandjis time. To say that it is work of Dasam Pitah is blasphemy.Koolkat 16:28, 21 May 2008 (UTC)