According to the Hindu Shastras, the cow is considered holy and sacred, and is stated as our mother. In the Hindu religion, the cow is both respected and worshipped. Gau Puja bestows forgiveness for all your past sins, including a grave crime like murder. All Gods are said to be present in Gau Maata. If any person worships a cow, then just by worshipping Gau Maata, he gets the blessings of all the Gods.
Gau Puja takes place on the fourth day after Diwali in India. If Gau Maata is worshipped on that day, one gets the blessings of Lord Rama.
Get Gau Puja done at least once in a year. Happiness will prevail in your house and you will be relieved of all sufferings and hardships.