Karthigai Vrata falls on March 4th, '17, Saturday.
Karthigai is the birth star of Lord Muruga, yes, we all know. Karthigai is a constellation of stars who are actually the six nymphs who reared Lord Muruga.
No wonder, Karthigai is the star auspicious for the worship of Lord Muruga as it is only Karthigai nymphs who reared him. There are special prayers and abhishekams in temples in the worship of Lord Muruga on the day.
Let us pray to Muruga for spiritual enlightenment and attainment of virtues in life through slokas and puja at home on this day.