It is Saraiki. Papulation is more than as stated, Kindly correct. Saraiki is also Eductional and istituitional, Saraiki is also in USA, Canada, KSA, UAE, South Africa, Astarlia.
It appears that the primary name for this language is indeed Saraiki; we are contemplating a name change from Seraiki to Saraiki, based on an eventual ISO 639-3 Change Request submission. Our contact has estimated the L1 population in Pakistan at 20 million. Saraiki is vigorous in use in all generations, but there is no primary or secondary school system using it as a language of education. So, it does not meet the EGIDS criteria for level 4; it will remain at EGIDS 5. We will need more evidence of Saraiki immigrant communities in the countries listed to be able to add them.