Vrata

Vrata is a vow.

Vows are depending on the day of the week, the season, the position of the planets, fasting, pilgrimages, donations, keeping silent (mauna). They are always combined with a wish.

The Vrata is followed by the Utsava, the celebration of joy as a reward for effort.

Every Vrata has its story (Katha), the narrations are called Vrata Katha.

Find a collection of Vrata Katha here
http://sushmajee.com/vrat-festivals/vrat/vrat-kathaa/index-vrat-kathaa.htm
http://www.sushmajee.com/vrat-festivals/vrat/index-vrat.htm