History of shani dev
Shani is a Deva and son of Surya (the Hindu Sun God) and his wife Chhaya (Shadow goddess) and hence also known as Chayyaputra. He is the elder brother of Yama, the Hindu God of death, who in some scriptures corresponds to the deliverance of justice. Interestingly, Surya’s two sons Shani and Yama judge. Shani gives us the results of one’s deeds through one’s life through appropriate punishments and rewards; Yama grants the results of one’s deeds after death.
It is said that when Shani opened his eyes as a baby for the very first time, the sun went into an eclipse, which clearly denotes the impact of Shani on astrological charts. He is known as the greatest teacher. Shani dev is said to be very harmful to those who follow the path of betrayal, backstabbing and unjust revenge. He is known in Hindu scriptures as the greatest trouble giver as well as the greatest well wisher. He is depicted dark in colour, clothed in black; holding a sword, arrows and two daggers and variously mounted on a black crow