PakistanGrenade attack by extortion mafia in Karachi, no causalitiesAbdullah ZafarSeptember 23, 2012September 24, 2012 by Abdullah ZafarSeptember 23, 2012September 24, 2012 Karachi: Some unidentified miscreants hurled two grenades on a house in Gulistan-e-Jauhar area of Karachi, causing no causalities....