Skanda panchmi fall on the fifth day of waxing moon of the Ashada masa. i.e Ashada Sukla Panchami.
This day is considered to be auspicious for the devotees of Lord Murugan or Subramanian or Karthikeya or Skanda or Sarvana.
In 2012 Skanda Panchami is on June 24 2012.
Devotees visit the Subramanian temple and offer prayers to Lord.
Devotees observe a day long fast and break the fast after visiting the temple. It is believed that keeping fast on this day and visiting the temple would relieve them of their sorrows and miseries.
Devotees also read stotras of Subramanian on this day.