Pausha Putrada Ekadashi falls on 8th January 2017 (eleventh lunar day of Hindu month Pausha). This is an important vrat of Hindus. Couples worship Lord Vishnu on this auspicious day to get blessed with a son. They keep fast and offer special puja for Lord Vishnu. This holy day is very popular in North India.
According to Hindu mythology; sons are carrier of ancestors rites. They are support of parents in their old age and perform shraddha after their death that brings their soul to peace. As sons are referred divine blessings of God in Hindu culture; many married couple wishe for a son to their beloved God.
According to the Hindu mythology, the king of Bhadravati Suketuman and his queen Shaibya were upset because of having no child. The couple was worried about their lost souls after death. On frustration, the king left his kingdom and went to the forests. Traveling in the forests for few days, the king reached the ashram of some sages on the bank of Mansarovar on the day of Putrada Ekadashi. After knowing the problem of king, the sages advised Suketuman to observe the fast of Putrada Ekadashi to attain a son. Suketuman followed the advise of the sages and returned to his kingdom to observe the Putrada Ekadashi fast along with his wife. Soon, the couple was blessed by a son with the grace of Lord Vishnu, who grew up to become a great king in future.
To fulfill Putrada Ekadashi brat; couples should be observing a fast for 24 hours. It is fruitful; if you worship Lord Vishnu. Eating rice and other grains are prohibited. For childless couple, it is recommended that both husband and wife should worship Lord Vishnu together and should perform jagran.