How do we establish the authenticity of the Kartarpuri Bir???? I am aware most of the below sources are misquoted as per Al-Taqiyaa and anyone familiar with Bhangu's works will know he himself takes great pains to establish it's authenticity. But still wondering.
P.S. This isn't the English Gurinder Singh Maan, this is the American.
http://www.islam-sikhism.info/hist/kartarpuri01.htm A