Varaali .. here is one of the stories
Lord Shani Dev answered that his period Sade Sati is for 7.5 years, But Lord Shiva was not agreeing for this. Again Lord Shani said that let me reside with you only for 5 years or at least for 2.5 years. But Shiva was not ready for 2.5 years, nor 7.5 months or even 7 days.
Lord Shani Dev said to his Guru that if he spared him, no one in the world will Trust on him, Ultimately he agreed to stay in Lord Shiva's moon sign for only 3 hours and 45 minutes. Lord Shiva thought that Lord Shani Dev would not be able to do anything within this short period.
Lord Shiva went to River Ganga to take bath by thinking that 3 hours and 45 minutes time will be passed in his bath and period of Lord Shani will be over. Lord Shani Dev took the form of watermelon seller and met to his Guru on his way and as his shadow fell on him, his body and mind changed. Lord Shani Dev showed him two watermelons. Lord Shiva got very happy to see those juicy watermelons and bought it from Lord Shani Dev. He put them in a bag and proceeded towards the river.
Previous day, King's two sons went for hunting and were missing. The king was worried about his Sons and he send his soldiers in the forest for searching the Princes. One of the soldiers reached to Lord Shiva and asked him what was in his bag ? Lord Shiva answered that there were two watermelons in this bag. Again soldiers asked that why was blood dripping from his bag ? Lord Shiva was shocked and looked at the bag, he also found that blood was dripping from his bag. Soldiers took off the bag from Lord Shiva and opened it. They found two cut off Heads of King's Sons. By the gaze of Lord Shani Dev, the watermelon had changed into the heads of those two boys.
The soldiers took Lord Shiva in front of the Angry King. The King said that Lord Shiva was not a Brahmin, he was a murderer and ordered his soldiers to Hang him. Lord Shiva requested the Soldiers to wait for a few minutes only, and if he was saved, he would give them 10,000 Gold Coins. As Lord Shiva knew that Shani's gaze will be over very soon. The soldiers agreed for these Terms.
After a short time, Lord Shani Dev gaze was Over and soon after the two King's Sons entered back in Royal Palace. Immediately the king sent a messenger to the Soldiers that not to hang the Sadhu as his Children has come back alive.
Lord Shiva was taken to the Palace by Soldiers. The king felt very sorry and asked to Lord Shiva for his forgiveness. Lord Shiva said that the king was innocent and whatever happened with them was all Lord Shani's illusion. The king then saw the bag of Lord Shiva and found two watermelons inside it.
He arranged for the fragrant bath for Sadhu, worshipped him and fed him delicious food. The king gave him new clothes and filled his bag with Gold coins.
After that Lord Shani Dev again reached to Lord Shiva and asked him, what was the experience of his Gaze ?
Lord Shiva replied, "O shani, you are Great, only 3 hours and 45 minutes Gaze shattered me, what would have happened if you had stayed on me for 7 and years ? Today I agree that you are most Powerful in the world.
Lord Shani Dev said, "O my Guru Shiva, I am sorry for all the Happenings, Please pardon me, and I shall never offend you in this way again". After saying these words and bowing down to his Guru, Lord Shani Dev went back to his Shani lok.
One day Lord Shiva has challenged Lord Shani, to show the power of his eyes. Then to escape from the sight of Lord Shani, Lord Shiva has hidden under the mud of water pond. The next day Lord Shiva came out from the mud and proudly stated that he escaped from the sight of Lord Shani, then Lord Shani has laughed at Lord Shiva and reasoned the cause of hiding under the mud of the water pond instead of enjoying in Kailash Giri with Mata Parvati and other Deva gana. Then Lord Shiva has accepted the truth of the curse and blessed Lord Shani with the title "Eeswara" and from that time onwards Lord Shani named as "SHANEESWARA"
