parad shivling is nothing but the mercury shivling ,it is made up of pure mercury which is rich in all the chemical properties,it can give good health and cure your diseases ,according to holy book it is the resemblance of lord shiva ,parad shivling gives all the good effects and benefits when worshiped with complete faith ,it is very good to conduct parad shivling puja at maha shivrathiri and other shiv festivals ,
parad shivling benefits are many and it gives all pleasure and prosperity to the worshiper