though i lack in knowledge on this topic.but still in my mind i find a simple reply to this.....iqbal's verse ''nizam-e-padshahi ho k jamhoori tmasha hw,juda ho deen syasat se to reh jati hai chnghaizi''......it means that iqbal surely advocated the ammalgamation of deen(ISLAM) And politics....in islam there's concept of KHILAFAT.....so it becomes that IQBAl advocated KHILAFAT......dunno more about this

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*you can tell more about a person by what he says about others than you can by what others say about him*-leo aikman!