Aadi Krithigai, at the famous Tiruttani Murugan Temple in Tamil Nadu, is observed on the Karthigai Nakshatram in the Aadi Month. Aadi Karthigai 2023 date is August 9. Adi Kartika Theppa Thiruvizha is observed on the day.

The popular belief is that Muruga who was born as six different babies was looked after by the six Karthigai stars. He was later joined by Goddess Parvati. The Karthigai Nakshatram is therefore considered highly auspicious by Lord Muruga devotees.