Correct Option: D

‘Operation Saiyam’ was unique Army operation in November 2010 to defuse about 20,000 unexploded bombs weighing about 50 tonnes that had arrived in waste steel scrap at the dry port of Dhandari Kalan (Ludhiana), thereby preventing any possible disaster in the civil areas in and around Ludhiana. Imported from Gulf countries in the garb of metal scrap by nine firms located in Mandi Gobindgarh and Ludhiana to be recycled into steel, the war scrap was found to contain mainly mortar bombs, projectiles, grenades, rockets, detonators and artillery shells with no traces of any chemical weapons.