Kalashtami, which is also known as Kala Ashtami, is observed every month during Ashtami Tithi of Krishna Paksha. Devotees of Lord Bhairav keep fast and worship Him on all Kalashtami days in the year.

The most significant Kalashtami, which is known as Kalabhairav Jayanti, falls in the month ofMargashirsha according to North Indian, Purnima to Purnima, lunar month calendar while Kalabhairav Jayanti falls in the month of Kartik in South Indian, Amavasya to Amavasya, lunar month calendar. However both calendars observe Kalabhairav Jayanti on the same day. It is believed that Lord Shiva was appeared in form of Bhairav on the same day. Kalabhairav Jayanti is also known as Bhairav Ashtami.

The Ashta Bairavar Sahitha Ashta Mangala Kala Bairavar was consecrated at the Sri Danvantri Arogya Peedam, Walajapet, on November 14, 2011. The Kalashtami for Kala Bairavar is being observed on 21/11/2016 and 22/11/2016 (Monday & Tuesday)

On the occasion, Sri Muralidhara Swamigal, the founder of the Danvantri Arogya Peedam, will be performing special homam, pooja and abhishekam for Kala Bairavar from 21/11/2016 @5.30 PM and 22/11/2016 from 10.00 AM to 01.00 PM. According to the swamigal, Kala Bairavar is capable of destroying all evil and sins. Kalashtami is most sacred and removes all miseries of devotees.

"All devotees are invited to participate in this auspicious occasion and receive the blessings of Kala Bairavar and Sri Muralidhara Swamigal for a disease- and disorder-free life,Tamil version