Which Olympic medalist was commissioned into the Army in 1990? | #rajyavardhan Singh Rathore # Biography # Untold Story # True Legend # Inspiring Journey # Triumphs # Challenges # Gripping # Exclusive # Hero # Legend # History # India # Sports # Military # Achievements # Leadership # Patriotism # Courage # Determination # Inspiration # Success # Motivation # Legacy # Role Model # Government # Minister # Olympics # Shooter # Athlete # Army # National Pride # Honors