Karadayan nombu is celebrated by the Tamil Brahmins when the Tamil month of masi is ending and the begining of panguni masam.It is done to pray for the long life of the husband.There is a story of sathyavan and savithri behind this how she fought with yama to bring him back to life.
The pooja or Naivedhaym is done before the panguni masam starts.It comes at different time of the day every year.We used put small kolam on the floor near the pooja room (in east direction)spread a small banana leaf serve two adais of each(sweet and salt)with some butter and keep a vetrilai pakku.
The sastrigal usually gives a yellow thread(Nombu saradu) few days before the nombu and we usually tie some flowers and if possible some fresh Turmeric piece we usually get during pongal time.
We tie it around the neck and pray to god and offer the adais to god and eat those adais and keep one adai of each in a plate specially for the husband.
We make two types of adais one is sweet and the other is salt.In some houses they make only sweet.It is usually made with rice flour either made at home or store bought one.let us see how i made these.