Chandigarh, May 29 Political parties in Punjab are playing politics over the the rejection of the mercy plea of Khalistan militant Devinder Pal Singh Bhullar with the Akali Dal and Punjab Congress demanding that his death sentence be commuted. The ruling Shiromani Akali Dal sought "direct and immediate intervention of the Prime Minister to save the life of Bhullar on grounds of humanitarianism and civilised concern and above all national interest".