Here you will get detailed story behind celebration of Karva Chauth and Karva Chauth Vrat.
Myth of Karva Chauth / Story Behind Karva Chauth
"A long long time ago, there lived a beautiful princess by the name of Veeravati. When she was of the marriageable age, Veeravati was married to a king. On the occasion of the first Karva Chauth after her marriage, she went to her parents’ house."
"After sunrise, she observed a strict fast. However, the queen was too delicate and couldn’t stand the rigours of fasting. By evening, Veeravati was too weak, and fainted. Now, the queen had seven brothers who loved her dearly. They couldn’t stand the plight of their sister and decided to end her fast by deceiving her. They made a fire at the nearby hill and asked their sister to see the glow. They assured her that it was the moonlight and since the moon had risen, she could break her fast."
"However, the moment the gullible queen ate her dinner, she received the news that her husband, the king, was dead. The queen was heartbroken and rushed to her husband’s palace. On the way, she met Lord Shiva and his consort, Goddess Parvati. Parvati informed her that the king had died because the queen had broken her fast by watching a false moon. However, when the queen asked her for forgiveness, the goddess granted her the boon that the king would be revived but would be ill."
"When the queen reached the palace, she found the king lying unconscious with hundreds of needles inserted in his body. Each day, the queen managed to remove one needle from the king’s body. Next year, on the day of Karva Chauth, only one needle remained embedded in the body of the unconscious king."
"The queen observed a strict fast that day and when she went to the market to buy the karva for the puja , her maid removed the remaining needle from the king’s body. The king regained consciousness, and mistook the maid for his queen. When the real queen returned to the palace, she was made to serve as a maid."
"However, Veeravati was true to her faith and religiously observed the Karva Chauth vrat . Once when the king was going to some other kingdom, he asked the real queen (now turned maid) if she wanted anything. The queen asked for a pair of identical dolls. The king obliged and the queen kept singing a song " Roli ki Goli ho gayi... Goli ki Roli ho gayi " (the queen has turned into a maid and the maid has turned into a queen)."
"On being asked by the king as to why did she keep repeating that song, Veeravati narrated the entire story. The king repented and restored the queen to her royal status. It was only the queen’s devotion and her faith that won her husband’s affection and the blessings of Goddess Parvati."