The temple has a traditional South Indian style, with features of a archiecture, with delightful entrance called 'Rajagopuram' with several stucco figures, many of them are poses of the classical dance form Bharatnatyam. There are numerous deities residing within the premises of Vadapalani Lord Murugan Temple, like Lord Ganesha and Lord Vinayaka, Lord Shiva, Goddess Meenakshi Amman, Lord Sanmuga, Goddess Kali, Lord Bhairava, Goddess Dakshinamurty Mahalakshmi. The Lor Murugan is the chief deity amongst all, and he resides in the sanctum sanctorum of the temple.
Auspicious Vaikasi in the month(May- June), Brahmotsavam in the month(Feb- March) Aippasi in the month(October- November), Margazhi in the month(December- January), Panguni in the month(March- April) are the festival celebrated in this temple. Aippasi- This is the celebration of the victory of Goodness over evil. Lor Muruga defeated and killed demon Suran on the sixth day of the crescent moon during the Aippasi month of October- November. This day marks the Kandha Shashti and on this day the events of the victory, or as they call it, Sura Samhara will be recreated by the devotee as a part of the festivities. The seventh day marks the wedding of Lord Muruga consorts with Goddess Valli and Goddess Deyvaanai, his two consorts and is called Subramanyar Thiru Kalyanam.
Margazhi(December- January)- Udal Urchavam is commenced on the tenth day of thiruvadharai Urchavam on the Pournami of the Margazhi month(December).
Panguni(March- April) - Panguni Uthiram lathcharchanai goes on for ten days and is over on the Panguni Uthram day. This is followed by the departure of Vadapalani Andavar temple in the evening. Auspicious deepam festival takes place after this for three days. Devotees offer prayer to get relief from health problems, gain long life, lock the power of bad and jeopardy, recover from physical and mental instability, bless peace and harmony and bestow abundance in life.