Tejshree Thapa joined Human Rights Watch's Asia division as a researcher in 2010, a position she had held before from 2004-2006. During her prior tenure with Human Rights Watch, Thapa researched human rights abuses committed by the Maoists and the armed forces of the Government of Nepal in the course of the civil war there, the attack on human rights defenders and civil society, and the increasingly closed political space for democratic actors after King Gyanendra resumed authoritarian and unconstitutional rule. She also worked on the increased abduction of child soldiers by the Liberation Tigers of Tamil Eelam (Tamil Tigers) in Sri Lanka following the defection of Colonel Karuna, as well as on the eastern wing of the Tamil Tigers.
Before joining Human Rights Watch, Thapa worked for the Office of the Prosecutor of the International Criminal Tribunal for the Former Yugoslavia, and before that with the UN Special Rapporteur on Violence against Women. She holds a law degree from Cornell University.