Aadi month (July 16th - August 16th) is the 4th month of the Tamil Calendar. The next six months from Aadi to Margazhi is the Dakshinayana punyakalam. It marks the beginning of the night of Devas. Traditionally, Aadi month is considered as inauspicious and most people avoid auspicious ceremonies during this period.
But few important festivals are celebrated in this month. This month is special for Goddess Shakthi. People worship Goddess and her different forms during this month to get her blessings for their wealth and happiness. The 1st Friday of Aadi month is dedicated to Goddess Swarnambika, a form of Goddess Parvati.
The 2nd Friday of Aadi month is dedicated to Goddess Kali, Offering your Prayers to the Goddess of Siddhi powers will bless you with Extraordinary Intelligence. The 3rd Friday is dedicated to Kalikambal, a form of Goddess Parvati, who bestows us with courage and health. The 4th Friday is dedicated to Kamakshi Amman, a form of Goddess Shakti. It is considered that offering special prayers on this day to her will remove the obstacles in marriage, relationships, etc and will help us to be successful in life.
The last Aadi Friday is dedicated to Lakshmi, the consort of Lord Vishnu and Varalakshmi Pooja will be observed on this day. This is a special day for all women. On this day, Goddess Lakshmi listens and fulfills the needs and desires of women, who earnestly pray to her. It is said that if a woman earnestly prays to the Goddess on this day, she will invoke the blessings of Goddess for her entire family.