• What? Successful summit of Mount Aconcagua
• Who? Indian mountaineer Aritra Roy
• Where? Argentina, South America
• Sponsor: HAL
• Significance: Highest peak outside Asia (6,967.15 m); fourth milestone in Seven Summits challenge
• Previous Summits: Mount Kilimanjaro (Africa), Mount Elbrus (Europe), Mount Everest (Asia).

About Mt. Aconcagua Expedition
Summit: He summited after a 10.5-hour push, spent 45 minutes at the peak, and completed a 44-kilometre (km) climb in minus 40 degrees Celsius (–40°C) temperatures, snowstorms, and blizzards.
Camps: The route included Confluencia (3,340 meter, m), Plaza de Mulas (4,350 m), and three high camps at 5,050 m, 5,650 m, and 6,000 m.
Sponsor: The solo expedition was fully sponsored by Hindustan Aeronautics Limited (HAL), a Navratna Central Public Sector Enterprise (CPSE) under the Ministry of Defence (MoD).
Previous Expedition: He previously summited Mount Kilimanjaro (Africa), Mount Elbrus (Europe), and Mount Everest (Asia), completing a solo ascent of Everest on May 19, 2025.
About Mt Aconcagua: 
Location: Mt. Aconcagua is a towering mountain situated in the Principal Cordillera of the Andes, in Mendoza Province, Argentina, close to the Argentina–Chile border.
Significance: Mt Aconcagua, known as the “Stone Sentinel,” is the highest peak in the Southern and Western Hemispheres, noted for its extreme altitude and rapidly changing weather.
Seven Summits: Mt. Aconcagua is one of the Seven Summits which include Mount Everest (Asia), Aconcagua (South America), Denali (North America), Mount Kilimanjaro (Africa), Mount Elbrus (Europe), Mount Vinson (Antarctica), and Mount Kosciuszko (Australia).
About Hindustan Aeronautics Limited (HAL):
HAL was originally established as Hindustan Aircraft on 22 December 1940 and restructured as Hindustan Aeronautics Limited in 1964.
Chairman and Managing Director (CMD)– Dr. D.K. Sunil
Headquarters– Bengaluru, Karnataka