i assume most of the arabs were pagans before mohammed and they were hindus and nature worhippers like hindus..
i think moahmmed did praise India in one place, he talks abt " cool breeze coming from direction of India "..
coming back to future, the coming of the Mehdi and prophet isa (jesus) the army of faithful will be victorious over the non-believers of India and all those muslims loose fighting againsts these qufrs arepromised palce in jannath...
