Intelligence agencies have identified Saifullah Kasuri, also known by the alias Khalid, a senior commander of the ashkar-e-Taiba (LeT), as the mastermind behind the massacre.
"We will not only trace those who perpetrated this incident. We will also reach out to those who, sitting behind the scenes, have conspired to carry out the nefarious act...," Singh said.
According to an intelligence source, a few days prior to the incident, a terrorist based in PoK had made a suggestive remark hinting at the attack, but the security forces failed to act on it.