Sashti is the day the Lord Subramanya defeated the demon Soorapadman. When the devas couldn't tolerate the evil doings of this demon, they approached the younger son of Lord Shiva and Parvati for his assistance. He fought Soorapadman for six days, at the end of which the Lord vanquished the asura. He threw his weapon at him and Soorapadman was split into two halves. One half became a peacock, which he took as his vaahana. The other became a cock and was transformed into his flag.
The devas, who were tormented by Soorapadman, rejoiced—they praised the Lord and prayed to him for six days. Devotees usually narrate the kanda sashti kavacham during this period. Whoever fasts for these six days of Skanda Sashti and prays to Lord Muruga steadfastly, it is said that they would get the blessings of Lord Muruga. Those who are unable to fast all day for a six-day duration, can eat just one meal during this period
source : Wikipedia.
Kaarthika Maasa Celebrations : Oct 27 - Nov 21
Mondays : Mahanyasam
Other days : Lahunyasam
8pm Aarathi & Veda Asirvachanam
Devotees are invited to Sponsor Abishekam for the day of their choice and take blessings of Lord Shiva.