    sentence 1: Why do Punjabis in Pakistan  discriminate against us Sindhis based on  skin colour? :    Sentence 2: Pakistan's national anthent is in  Farsi, a language uinderstood. by 2 few. Why  not: “Urdu, sindhi, Punjabi which are.  understood by many? (Bengali and Pushto  ‘can be added in the list too.)