Deals like this generally include parts and support so that may make the per piece cost see higher.
With this Gov't the bribe factor is not there.
These guns are supposedly ultra-light-weight, being made from titanium, so they are easier to cart around the Himalayas.
I don't know how to link but you can find some details here
http://www.baesystems.com/en/article/bae-systems-down-selects-mahindra-for-proposed-ultra-lightweight-howitzer-assembly--integration-and-test