New Delhi, June 4 -- The Centre has done away with the requirement of separate Prior Reference Category (PRC) clearance for foreign nationals who have already been granted security clearance through the Security Clearance Portal (SCP), officials in the ministry of home affairs (MHA) said on Wednesday. The move is aimed at eliminating a dual approval process for certain categories of foreign nationals whose security clearance is regulated by the MHA. The PRC refers to a category of people from countries such as Afghanistan, Pakistan, Iraq, Sudan and China, as well as foreigners of Pakistani origin and stateless people, who require security clearance to attend events such as conferences and sporting competitions in India. The MHA regulates the security clearance for people in PRC list. The SCP is a centralised web portal to streamline the security clearances for specific categories handled by the MHA. Only ministries and government departments needing security clearance for foreign nationals can apply on this portal....