New Delhi, April 04 (ANI): Samajwadi Party (SP) leader Naresh Agarwal on Friday, called for stringent action from the centre against those forces that had demolished the Babri Masjid. An elaborate sting operation, conducted by Cobrapost on 23 key people of the Ram Janambhoomi movement, claims that the fall of the disputed 16th century structure on December 6, 1992, was elaborately planned by various wings of the Sangh Parivar and executed with precision by trained volunteers. It wasn't, as it is claimed, a case of mob frenzy going out of control, leading to the collapse of the Babri Masjid .