I think there are few doubts about the Krug. Not only did the Ottomans make extensive use of krugs themselves, but after the Ottomans conquered the Mamluk Sultanate in 1517, they carted huge amounts of Mamluk armour and weapons back to Istanbul. It was subsequently reused by Ottoman troops. With regards to using Indian-style mail and plate helmets we are on much shakier ground. There is no doubt that Mughul armour was influenced by Ottoman and Persian armour, but the influence seems to have flown in only one direction. I haven't seen any Ottoman helmets with a similar method of construction.
By the way, I've found pics of another Indian helmet of a similar type:
http://www.ashokaarts.com/armour/ar-5.html