Ketu Yantra should be installed and worshipped to appease planet Ketu. Planet Ketu is a shadow planet which means that it has no physical existence and yet its effects are very marked and pronounced especially so when it is placed wrongly in one’s horoscope. The planet Ketu is a cruel planet although it has a spiritual aspect to it as well. It forms a Kaal Sarp Dosha with Rahu and it is also responsible for various kinds of mishappenings in life especially those incidents which occur suddenly like accidents etc. The planet Ketu also forms various bad Yogas when it is in conjunction with other planets. In all the above situations, installing and worshipping a Ketu Yantra can be very helpful. This Yantra is also said to be helpful in removing the effects of Snakebite and sudden illness due to poisons. This Yantra is also very effective in the problems like fear of Death, Litigation, Sudden Losses and Bone Diseases like Arthritis. It also bestows good Health, Wealth & Prosperity. This Yantra also helps for Success in Business & Victory over Enemies.