In January 2020, he was named in Nepal's One Day International (ODI) squad for the 2020 Nepal Tri-Nation Series.[6] He made his ODI debut for Nepal, against the United States, on 8 February 2020.[7] In the match he scored 50 runs from 51 balls, and at the age of 15 years and 340 days, he became the youngest male cricketer to score an international half-century.[8]
In September 2020, he was one of eighteen cricketers to be awarded with a central contract by the Cricket Association of Nepal.[9] In April 2021, in the final of the 2020–21 Nepal Tri-Nation Series, he made 50 not out, becoming the youngest cricketer to score a half-century in a T20I match.[10]
In April 2023, Malla scored his first century in ODIs during a match against Oman. He scored the century in just 54 balls, the fastest by a Nepalese player. He is the fourth Nepalese player (after Paras Khadka, Kushal Bhurtel, and Dipendra Singh Airee) to score centuries in both T20Is and ODIs.
In September 2023, Malla scored the fastest century in T20Is off 34 balls, a record previously held by David Miller, Rohit Sharma and S Wickramasekara (35 balls).[11] Malla set the record to score most runs in an innings in T20I without coming in as an opener.
Malla attended New Horizon School in Butwal, Rupandehi from year 3, and currently attends Kshitiz International College on a full scholarship.[13] He used to lived in Butwal 11 devinagar. Currently, he lives in Chandragiri with his father and mother. He is the only son of the family.
