Once all 8 Vasus were roaming in a jungle along with their wives. One of the Vasu Prabhas's wife saw divine cow Nandini of sage Vashishth and expressed the desire to possess the divine cow. Prabhas along with all other Vasus stole the cow.

When sage Vashishth found out about this he cursed all the Vasus to be born as humans. When all the Vasus repented their action sage Vashisth suggested a way out to seven Vasus except Prabhas. He allowed them to get rid of their human birth as soon as they take birth but since Prabhas was the mastermind of the entire thing, he will have to suffer for long time.

After this Vasus went to Goddess Ganga to seek her help in fulfilling sage Vashishth's curse by becoming their mother and relieving them from human life as soon as they take birth. Goddess Ganga agrees.

She meets king Shantanu as a beautiful woman and marries him with a condition that Shantanu will never stop her no matter what she does. She gives birth to seven babies and releases them in the river just after birth thus relieving them from their human form. However when the 8th baby is born, Shantanu stops Ganga from throwing the baby in the river.

This baby is Devavrat, who grows up to become Bhishma Pitamah. Learn more about your ad choices. Visit megaphone.fm/adchoices