Pradosha Vrata is observed on the 13th day of a fortnight and
there are two Pradosham in a Hindu month. Lord Shiva and Goddess
Parvati are worshipped in the evening during twilight on this
day. In some regions, the day is dedicated to Nataraja form of
Shiva. The fasting on this day is observed for success, peace
and fulfillment of desires. It is said that mere darshan of any
of the one form of Shiva removes ignorance. Pradosham is
observed when the Trayodashi Tithi is there during the twilight
period. This is important. The importance of Pradosha Vrata and
how to observe it is narrated in the Skanda Purana. There are
two methods of fasting on the day. Some people observe a 24-hour
fast which includes not sleeping during night. Another method is
fasting from sunrise till sunset and after Shiva puja in the
evening the fast is broken. Pradosham is the twilight period
just before sunset and after sunset. Pujas and prayers are
performed during this period. Many people during this period
spend the time in a Shiva t