https://en.wikipedia.org/wiki/Banasura vishnu shiva fought in a war for prahladhas son balis son banasura as he injured or insulted krishnas grand son when he found him with his daughter. war started krishna cut banasuras hands leaving just 4 hands later they both got married.
if we do 16 Pranayamas along with Mantras, the sins committed vanish. taking care of cows are normal redemptive acts for all sins. calling rama name shiva name Sri Rudra Mantra - Om namo bhagavathe rudraya - https://brahminrituals.blogspot.com/2010/02/prayaschitha-dharma-prakarana.html
prostitute, thief,who caused abortion , those who commit suicide look for Samgraha https://brahminrituals.blogspot.com/2010/02/aasoucha-dharma-prakarana.html menstruating woman shouldnt see sradda