Vickers-Maxim QF 2.95 inch mountain gun,British made, used by the USA in WWI.
I don't believe the USA uses them anymore, preferring mortars, hand held rockets, and recoiless rifles. The traditional mountain guns limit team mobility, which apparently does not concern the Army of India in this application. The implication is that the Indian Army wants to fortify its high mountainous borders in Kashmir with stationary artillery sites. If the Tibetans had done that, the Chicoms would have never gotten into Tibet en masse. It takes little to seal off mountain passes, and I guess these guns may be for that purpose.
What India wants is something like the US M777 that is light enough to be slung under a helicopter, or V-22 Osprey.
India has a requirement for heavy self propelled howitzers as well as light weight ones.The heavy ones can be deployed in semi-mountainous & desert regions while the lighter ones could be taken to more demanding territory.