India's (and traditional "colonialist") points of reference on the geopolitical behaviour of Muslim nation states are compromised solely due to their ignorance and reliance on extremist propaganda, instead of rationally considering objective data.
The poor dears perpetually expect a "sunni-shia divide" or an "arab-non-arab" divide to somehow hinder pacts and agreements. In truth, these "divides" exist in the minds of hindutvas and crusades-lovers.
Certainly, a few extreme individuals will always rant and rave, and certainly, extremist groups can be co-opted by well funded foreign organisations, but mature nation states will tend to work pragmatically for the betterment of everyone's interests when left to hammer out deals themselves.
Even now, biased media organisations are quietly adding Iran to the list of countries threatened by any Pakistan-Arab alliance, obviously to encourage opinion against the alliance. The countries who are actually involved know full well that Iran has nothing to be alarmed about and, if anything, other nations confronting or guarding against Israel will greatly assist Iranian domestic objectives.