Lord Sani (spelt Shani in South India) is the son of Ravi (Sun God) and Chaya Devi. Hence, Sani is also popular as Chayanandu. Sani represents the planet Saturn in our Solar System and the Saturday of any given week. He stands for justice. His affects are more severe than other and lasts longer due to the reason that Sani moves very slowly.

This story about a genius astrologer who predicts that Sani is coming towards him, listen further to know whether he managed to escape! 

Source - Chandamama May, 1948 magazine