India's Sakibul Gani became the first batsman in world cricket to hit a triple century on his first-class debut when he made 341 in the Ranji Trophy tournament.
The 22-year old walked out to the crease for Bihar Friday against Mizoram in Kolkata, the second day of their four-day match in the country's premier red-ball competition.
By the time he was out 405 balls later he had plundered 56 fours and two sixes.
The right-hand batsman surpassed fellow Indian Ajay Rohera's record of 267 not out for Madhya Pradesh in the 2018-19 Ranji Trophy season.
Another Indian Amol Mazumdar stands third with his 260 for Bombay, now Mumbai, in 1994.
Former India wicket-keeper Saba Karim - who comes from Bihar himself - lauded Gani's effort.
Batting at No 5, Gani put on a marathon stand of 538 with Babul Kumar, who made an unbeaten 229 - giving them a world record for the highest fifth-wicket partnership in first-class cricket.
Bihar declared their innings on 686 for five.
The first-class competition - named for Maharaja Ranjitsinghji, an Indian prince who played for England in the 1890s - had a delayed season start Thursday due to the coronavirus pandemic.