 Complete the following phrase:  While the 2nd Gurkhas became one of the four Gurkha regiments to transfer to the British Army, the regiments 4th Battalion was transferred to the Indian Army as 5th Battalion, 8th Gurkha Rifles Sirmoor Rifles where it exists to this day. The first Indian commanding officer of this battalion, Lieutet Colonel later Brigadier Nisi Kanta Chatterji, requested Army Headquarters, to let the battalion keep the title Sirmoor Rifles, which was accepted. This battalion saw action in the 