Complex sentence: Lt. Karan is posted to the 3 Punjab Regiment, commanded by Col. Sunil Damle Amitabh Bachchan, and becomes a respected officer and gets posted to the Kargil sector of Kashmir during the heights of infiltration from across the border.
Split into simpler sentences: Lt. Karan is posted to the 3 Punjab Regiment, commanded by Col. Sunil Damle Amitabh Bachchan, and becomes a respected officer. The regiment is posted to the Kargil sector of Kashmir during the heights of infiltration from across the border.