Mountaineer Satyarup Siddhanta, 35, climbed Antarctica's highest point, Mount Sidley, to become the youngest man in the world to have climbed the seven highest volcanic peaks, besides other summits.
Mr Siddhanta summited Mt Sidley at 6:28 IST, at a temperature of minus 40 degree celsius, according to the inReach Satellite Communicator that he was carrying.
"6:28 AM (IST) successfully summited Mt. Sidley highest volcanic peak of Antarctica. Fluttered the India flag at Sidley, what a proud moment," he tweeted.
Last year, he scaled Pico de Orizaba which is the highest volcanic peak in North America.
Based in Bengaluru, Mr Siddhanta hails from Haridevpur in South Kolkata and is a software engineer by profession.
He holds the record of conquering several summits such as Mt Kilimanjaro in Africa, Mt Elbrus in Europe, Mt Denali in Alaska and Mt Monc Blanc in France.
Massive Worldwide Microsoft Outage: Flights, Markets, Stock Exchange Down CrowdStrike Falcon Sensor: The Culprit Behind World's Biggest IT Outage "Fix Deployed": CEO Of Firm Behind Global Microsoft Outage Microsoft Outage "Affecting IT Operations" Paris Olympics Organisers In Jaw-Dropping Video, 12-Foot King Cobra Rescued And Released In Karnataka Biden Or Trump, It's Still A Long Wait For Indian 'Dreamers' In US Track Latest News Live on NDTV.com and get news updates from India and around the world.