Dayal is an experienced human rights activist known for advocacy of Dalit rights as well as freedom of religion and conscience. He regularly presents data to various Indian government commissions and departments including, in 2007, the National Commission for Linguistic and Religious Minorities on the plight of Dalit Christians. He regularly speaks about socio-spiritual developments in India to diplomats such as the United Nations Special Rapporteur on Freedom of Religion or Belief (2008) and the official European Union delegation investigating anti-Christian riots in Orissa state (2008). After helping birth aicc in 1998, he was the only India-based witness to appear before the United States Commission on International Religious Freedom in Washington, D.C. in September 2000.
In December 2008, he was awarded the “Maanav Adhikaar Paaritaushik (Human Dignity Award)”, given in memory of Professor M. M. Guptara, for “helping individual cases of human rights abuse, as well as struggling against structural human rights abuse aimed at whole groups (such as Dalits, Muslims and Christians), and fighting organised human rights abuse.”