RAWALPINDI, Sep 16 (ABC):All is set to observe ‘Chehlum’ here on Saturday with religious fervour and reverence to remember the supreme sacrifices rendered by Hazrat Imam Hussain (RA) and his companions for the cause of Islam while over 3600 cops would guard the mourners. The district administration and law enforcers have finalized all necessary arrangements to facilitate the mourners. Rawalpindi …