LAHORE A Punjabi folk singer has knocked the door of Lahore High Court after to get the Rs 50,000 aid the Chief Minister had announced for his medical treatment months ago. In the petition Ijaz Lauhar said the chief minister had announced to grant him the said amount about seven months ago and also passed directions to the DCO in this regard but so far noting had been done practically while his ailment aggravating. The petitioner has impleaded the chief minister Punjab Shahbaz Sharif, DCO and Commissioner Lahore Division as party to the petition.