Hindu Kush is an indica. Im almost 100% positive.

I'll go and find out.

Edit: Hindu Kush Cannabis Seeds

HINDU KUSH is another heavy indica from Nirvana.
Originally one of the world’s true indicas brought back from the rugged Hindu Kush mountains.
Hindu Kush stays short and has wide dark green leaves with dense buds forming on thick stems.
The smoke has a musty earthy flavour and is heavy like hash on the lungs.






So if the bud you've got now it's a sativa is aint hindu kush. But yes, hindu kush is a real strain and very good, just not the one your smoking.