In Mahabarata two very intelligent and just men were introduced by sage Vyasa. One was Vithura, the son born to sage Vyasa through a servant maid and the other was the Sanjaya who was a charioteer of  king Dhirthrashtra. Because of his honesty, intelligence, just and straightforward character lord Krishna gave Sanjaya the vision to see and report the battlefield from the king Dhirthrashtr's palace without visiting the battlefield. Because of this vision he explained the happenings of the battle field to Drithrashtra, who was blind from birth and could not see the battlefield or its happenings.

To be frank it was Sanjay's description of the war and battlefield which is half the story with Bagavat gita in it as told by Sanjaya to Drithrashtra.

While reciting the incidents Sanjaya also chides and advises Drithrashtra against the injustices meted out to the Pandavas and asked him to give them back  their share of the country. but Drithrashtra refuses to heed him as his love for his son Duryodhana was much more than the good advises given by Sanjaya, Bheeshma, Drona and others.

Sanjaya remain with  Drithrashtra and his wife Kanthari till their last when they left for the forest after the defeat of Duryodhana and the Kaurava army.

Story of Udhankar

Udhankar was a pious brahmin Sage who had great powers because of his great penances. Once he met Lord Krishna and was talking to him. While he was about to leave Udhankar Krishna asked him for anything and it would be given. But being so simple Udhankar refused to have anything as his needs are very few. Krishna went on asking him for any boon and finally Udhankar has relented and said "since you are so insistent give me water for drinking whenever I want it to quench my thirst as I used to wander in arid and dry lands".

Smilingly Krishna granted him this boon and vanished.

After sometime Udhankar was in a forest where there was no water and it was so hot he was in terrible thirst and went in search of water. He thought about the boon of Lord krishna and immediately one lowly Pulaya appeared in front of him. He was very dirty, half clothed and had some dogs with him and had a bow and some arrows and one cow's horn in which he kept drinking water.

This Pulaya smiled at Udhankar and said "Oh holy Brahmin it seems you are in thirst. I have water in my cow's horn. Drink it and quench your thirst." and offered his horn full of water.

But Udhankar was irritated by his ugly looks and dirty horn and refused it. But the Pulayah went on insisting him to drink it. But Udhankar refused and asked him to leave.

Then he prayed to Lord Krishna and asked him "Oh lord Krishna how you could keep me thirsty while promised to quench my thirst at anytime and everywhere?"

Lord Krishna appeared in front of him and said "Oh learned saint I asked Devendra to give you Nectar but he refused to share it with you as it was so precious. But I insisted and he said - I will go as a Pulaya and offer him this nectar. If he takes I will give it to him".

Krishna continued saying "So Devendra came as a Pulaya to offer you the Nectar (Amritham) but you have refused it. I thought that you being such an educated and knowledgeable person and would not refuse the water and hence agreed to Devendra's condition. but you have not passed the test."

Udhankar felt ashamed and guilty realizing that all are equal and no discrimination should be practiced.