As the US-based banned pro-Khalistan organisation, Sikhs For Justice (SFJ) has declared July 4 as the inaugural day for registration of referendum on Khalistan, Punjab Police have stepped up vigil in and around the Golden Temple in Amritsar District, reports Hindustan Times on July 3. An official of Punjab Police intelligence wing said the Centre has issued directions to the security agencies to keep a close eye on the Golden Temple premises in the wake of the call given by the SFJ’s legal adviser – Gurpatwant Singh Pannu, who is among the nine people declared terrorist by the Union Ministry of Home Affairs (UMHA) under the Unlawful Activities (Prevention) Act on July 1.