Thiruvengadu Budhan Bhagwan Temple also known as the Sri Shwetharanyeshwarar Shiva Tempe is an anient Shiva temple situated in the small town of Tiruvengadu in the Nagapattinam district of Tamil Nadu. This is a famous Shiva temple which is associated with the Navagrahas. It is well known for its Bhudha Bhagwan temple which is dedicated to the planet of Mercury. In fact, this is unique to this place and hence attracts tourists and devotees from all across the globe.Mercury Dosham can cause a lot of stress in one's life leading to problem of health such as heart disease and immunity disorders. This may completely jeopardise the life of an individual. There are certain puja's which have been designed to help get relief from the mercury dosham. Some of the powerful puja's are Budhagraha shanti puja, surakshakavach pooja, Siddha yantra of Budhagraha, herns poojam and a special spiritual art pooja. All these pooja's are unique in their own way and involves specific procedures which have to be followed. Priests in the temple of Shwetharanyeshwarar Shiva are well versed with each of them and can be approached for performing any type of pooja. Further, Lord Vishnu is also considered to be associated with Bhudan and hence he should be worshipped every Thursday to get some relief. These puja's has to be supplemented with certain mantras which are called the Bhudangayatri mantra. Chanting the mantra for about 108 times daily brings effective results.