Pakistan Ka Matlab Kya Hai

Wikipedia tells us:

Professor Asghar Sodai (1926-09-26 – 2008-05-17) was a famous educationist and Urdu poet born at Sialkot. Pakistan ka matlab kiya?, la ilaha Ilallah was coined by him in 1944, in his immortal Tarana-e-Pakistan, which spread like wildfire amongst the Pakistan Movement rallies. He was a great worker of Pakistan Movement. Muhammad Ali Jinnah once said that Asghar Sodai has 25% contribution in Pakistan Movement. He was former principal of Government Jinnah Islamia College and Government Allama Iqbal College. He also worked as Director Colleges Punjab. Prof Asghar Sodai died in 2008 after receiving a severe heart attack at his residence in Sialkot.

The Fourth Estate: People and Politics in Pakistan, by Hasan Khalid, 1994, in the snippet available at books.google.com confirms Professor Asghar Sodai as the one "who wrote the poem that became the rallying cry for Pakistan (Pakistan ka matlab kya hai, La Ilah-a-Ill-Lil'lah)".''

 Notes: Alternate spelling for Sodai is Saudai.