Labelling slain Khalistani terrorist Harmeet Singh alias Happy PhD as a martyr is an exercise conducted at the behest of Khalistani secessionists in the Sikh diaspora, according to a counter-terrorism expert. Ajai Sahni, who serves as the Executive Director of the Institute for Conflict Management in New Delhi, said a handful of people working at the instructions of ageing Khalistanis, who had left India in the 1990s, were trying to give a Khalistani colour to every incident of this nature.