Aadi festival is celebrated for the birth of the tamil month of Aadi (July - August)
This festival is special for various Ammans. Sundays, Tuesdays and Fridays of this month are considered very auspicious. A lot of festivals are celebrated in the month of Aadi. This tamil month marks the beginning of all festivals during the festival season. Tamil month Aadi is considered as an auspicious month. All Fridays in this month especially the 1st and 3rd are very auspicious.

It is considered auspicious to get darshan and offering pooja on the following three Sakthi Temples located near chennai on the same day. The form of shrine in all three temples are identical and it is more auspicious if possible to visit these temples on a full moon day which falls on a friday.
Ichchaa Sakthi (Thiruvudai Amman) -The Sakthi who will fulfill devotees wishes.
Gnaana Sakthi (Vadivudai Amman) - The Sakthi who will bless us with knowledge.
Kriyaa Sakthi (Kodiyidai Amman) - The Sakthi who assists us in all our actions and attempts.