When they came to earth they saw people performing Rudrabhisheka and japa.
The Tejo Agni produced by their japa started burning the Yamas attendants and they could no longer go very near the place. Lord of death complained to Lord Brahma that the hell is almost empty as sinners are getting purified by doing Rudra japa. At this rate they will be without any work. Lord Brahma informs Lord of death that those who do japa in standing position, those who do japa in sleeping position they will accumulate sins or get papa and the will go to hell and by mistake also don’t go near people who are doing japa in a proper manner. Those who do Rudra japa and take bath in the holy abhisheka water will not face untimely death. They will cross the ocean of this samsara. In their physical life they will get good health, will not have financial problems, gain knowledge, brave in facing challenges and their faces will be radiating Kanti and Tejas.
Those who do Shata Rudra japa will have long life. Sage Parashara advises king to perform Shata Rudra japa and abhisheka to Lord Shiva and pour holy water on their children so that they will have long life and get rid of all their previous birth’s bad karmas.