Nai Lert was born at his family’s home near the foot of Wat Bophitphimook Bridge at the mouth of Klong Ong Ang on June 22, 1872.

[1] After an education at Suan Ananta School that included a study of the English language Nai Lert started working for various firms and ended up becoming partner at the Singapore Strait Company (later to become Fraser and Neave) by the age of 20.

The distinguished Scholar Phraya Anuman Rajdhon would later on describe the exciting novelty of ice as "Most people who had never seen it refused to believe that there was such a thing as frozen water.

Nai Lert was also at the origin of the development of the Phloen Chit area where he acquired a large piece of land in 1915 and created one of the first developments in Bangkok by master planning the area and selling off parts of the land as individual plots including the existing British Embassy site on Ploenchit which was sold to the British Government in 1922 .

A few months after the end of World War II, Nai Lert died on December 15, 1945, leaving his business empire to his wife and his only descendant, his daughter Thanpuying Lursakdi Sampatisiri.