I wouldn't say some, I would say many. Even today I have so called Pathan friends and this goes on right in front of my face and for someone reason whenever I am introduced to someone or even mentioned over the phone to someone. De punjabiyaan da is the first thing to be said as some kind of qualifier or adjective about me?
With just as many about Sikhs, so at the very least we are equal opportunist racists. Urdu speaking people have so many jokes about us "paindos" because every Punjabi to them is a paindo, so what?