[1] He used the title Latosaathi (Nepali: लाटोसाथी) (meaning: mute friend) in his poetry works since 1963 A.D.[2][3] He is considered to be the first person to start writing Haiku in Sanskrit language.

[4] Atreya was born on 10 November 1944 as the first son of Dev Raj Upadhayaya and Sharada Devi in Rashminilaya, Kapilvastu, Nepal.

He attained his basic education under the custodianship of his father (who was a teacher in Tauleshwor Sanskrit Pathshala) and his grandfather Rashmi Raj.

If I would ask him about this, he would not speak but write sarcasm on deformed society and social Distortion and simply keep on laughing.

Similarly, he was founding member of Baneras Sahitya Samparka Samiti in 1968 A.D. and organised various cultural and religious programmes to encourage Nepali students studying abroad.

[citation needed] He has served as a professor of Navya Vyakaran in Nepal Sanskrit University for seventeen years (1996–2013).

While he was studying in Varanasi, he used to visit his home town Kapilvastu during summer vacation and attend and participate in cultural programs.

Once he wrote, directed and acted in a play which plots saving a royal swan of Siddhartha Gautam on a yearly program at Yashodhara Lower Secondary School, Taulihawa, Nepal.

In the year 1999, he also acted as Gajadhar Soti in a historical movie titled Bhanubhakta Acharya directed by Yadav Kharel.

He has also directed and led Sanskrit plays in Kalidash Janmajayanti program organised in Ujjain, India.

[11] Atreya has edited books [12] and has published articles and poems on various topics in national and international journals/newspapers.