IA does goes rigorous training in Mountain warfare. We have dedicated warfare school for that purpose and I believe that's one of the reason that we still does control and were able to control the Highest battle ground in world.I agree that usually that would be the case. But I was thinking of the terrain that makes up our borders - in particular the deserts of western India and the Himalayan ranges where combat is not limited to 300 meters.
If the enemy is high on a peak, won't our 300 meters feel like 500 meters shooting up?
And I apologize, 'martial arts' was a poor choice of word. But some hand to hand combat technique is necessary that will help in closed environments like inside a house, maybe.
Krav Maga training is compulsory for every Spec Ops as well as infantry man, along with Judo and in some cases Silat.