In Hinduism, each day of a week is dedicated to a particular god in the Hindu pantheon. Apart from the special Vratas and Upvaas, many Hindus also fast on a particular day in a week. Each day in a week has a specialty and there are numerous folklores associated with the fasting observed on the days of a week.
It must be noted here that the deity worshipped on a particular day might vary from region to region and community to community. The result of all upvaas or fast depends on the person. It is good, if all the members in the family can undertake a Vrata together.