Yesterday, the DGP had said two persons were arrested, while another one was identified.
Vaid said it is resolve of J&K Police not to spare the people involved in lynching of police officer.
The police had said the mob attacked the Deputy Superintendent of Police (Security) after spotting him behaving suspiciously outside Jamia Masjid in Nowhatta locality during congregational prayers at the mosque, NDTV reported.
Meanwhile, for his failure to save the life of the DSP Pandith, police has asked the SP North Sajad Khalid Bhat to report to the Police Headquarter till further orders and placed Additional SP Traffic Srinagar, Sajad Shah in his place.
Media reports said that an officer, in civvies, had gone outto see what happened when some people moved out of the grand mosque raising slogans as Hurriyat (M) chairman Mirwaiz Umar Farooq was expected to arrive at the mosque.
A mob stripped and lynched a senior police officer in the grand mosque of Srinagar, triggering widespread outrage.
The Nowhatta area, where the lynching incident took place, falls under the jurisdiction of SP North Srinagar.
Chief Minister Mehbooba Mufti, who attended the wreath laying ceremony at the district police lines, condemned the brutal killing. More arrests could be made in the case.
He said Pandith had confidence in local people and he left his driver and PSO near the mosque after telling them to observe Shab-e-Qadr.
The spokesman said based on his earlier discussion with Union Home Minister Rajnath Singh, the governor also discussed with the chief minister the urgent steps required to be taken to provide bullet-proof vests and vehicles and other protective gear to the police officers working in the field. DGP Vaid had said the culprits will have to face the law.