She earned a bachelor's degree in law from Thammasat University.
[1] She was a professor in the Faculty of Arts at Chulalongkorn University.
[1] Her 1965 romance novel of Thai rural life, Poo Yai Lee Gub Nang Ma, is one of the most famous novels in Thailand.
The novel was made into a film and television dramas seven times between 1971 and 2009.
[1] Nongchanai was recognized as a National Artist of Thailand in 2012 in the category of literature.