Jaraasandh was a good friend of Kans (Mathuraa's Raajaa Ugrasen's son), so he married his two daughters to Kans - Asti and Praapti, to make his relations stronger with him. When Krishn killed Kans, his both daughters got widow that is why he attacked Mathuraa 17 times with his 23 Akshauhinee army each time. Krishn pushed him back and killed his army all the times. When he came 18th time then Krishn and Balraam Jee ran away from there and inhabited Dwaarakaa Puree for the safety of Yadu Vansh. Since then Krishn was called "Ranchhod". "Ranchhod" means who has run away from battlefield.

He was killed by Bheemsen later when Yudhishthir wanted to do Raajsooya Yagya and it became necessary to win him. Then how to win him? was a great problem because he was very mighty. Somebody suggested that he regarded Braahman very much so Krishn, Bheemsen and Arjun should go there in disguise of Braahman and ask for a fight, He won't fight with Arjun because he would take him as an archer, he wouldn't fight with Krishn because he has already defeated Him 17 times, now remains Bheem. He would get ready to fight with him. And only Bheem can defeat him, because only Bheem had 10,000 elephants' strength as Jaraasandh had.

So they went to Magadh Desh in disguise of Braahman. When Jaraasandh saw them, he welcomed them and asked - "What can I do to please you?" Krishn said - "We are not here to ask for any money, or land, or clothes, or food etc. We want that you accept one of us for a dual fight." Then Jaraasandh saw them carefully and said - "If I am not wrong I have seen you somewhere." Then Krishn said - "You are right. We are not Braahman. This is Arjun, this is Bheem, and I am Krishn." Jaraasandh said - "Oh! Now I know why do you look familiar to me? As you wish. I don't want to choose you Krishn, because I have already defeated you 17 times. This Arjun is a child for me. Yes, I can accept Bheem to fight with ."

So they came out of the city and started fighting. Both were mighty, both were of almost equal strength. No one was able to defeat the other one so soon. This fight continued for 28 days. In the day time they fought and in the night they behaved normally. Then Bheem said to Krishn - "This man is very mighty, I cannot kill him like this, we will have to find some other way to kill him." Then Krishn told him the way to kill him, that he should part him by pulling his legs and throwing them on opposite sides. So next day Bheem did the same and thus Jaraasandh was killed by Bheemsen.