Who said the accession of Kashmir with India is illegal and fraudulent?

Who said the accession of Kashmir with India is illegal and fraudulent?

کس نے کہا کہ بھارت کے ساتھ کشمیر کا الحاق غیر قانونی اور فراڈ ہے؟
Explanation

Liaquat Ali Khan, also referred to in Pakistan as Quaid-e-Millat or Shaheed-e-Millat, was a Pakistani statesman, lawyer, political theorist, and one of the leading Pakistan Movement activists.