RAWALPINDI, March 9: Pakistan Muslim League (Nawaz) MNA Khawaja Saad Rafiq was on Thursday shifted to the Punjab House declaring it as sub-jail, official sources told Dawn. Saad Rafiq was shifted to Rawalpindi from Lahore by a PIA flight amid tight security. He was arrested by the Punjab police from Islamabad on February 17 and later shifted to Lahore. The arrested PML-N MNA is expected to attend voting in the Senate elections.