HOW PANDAVAS DIED?
After the war of Mahabharata, Yudhisthira became the king of Hastinapur. As he grew old , he along with his brothers and wife Draupadi decided to leave the kingdom and ascent a mountain to reach heaven or fall in the path to heaven, as only those who are vitueous, have a good heart and void of evils can reach heaven.They left the kingdom and the throne to Prakishit who is the grandson of Arjuna and son of Abhimanyu.
As they were heading towards the mountains to reach heaven, they were accompanied by a dog. On their ascent , Draupadi fell down and death .When Bheema asked Yudhisthira why Draupadi died first. Was she not vitueous? Yudhisthira replied that she was more affectionate towards Arjuna than the rest of them. This bias was the cause of her falling.
Soon after Sahdev fell down. Bheema again questioned Yudhisthira about the cause of his brother death. Yudhisthira replied that Sahadeva was proud of his intellect and knowledge.
Next to fall in line was Nakula. Bheema was losing his patience by then and began yelling and questioned Yudhisthira about his falling.Yudhisthira as always replied that Nakula was very proud of his good looks and charm and boast himself about his look.That was the reason for his falling.
As Arjuna touched the ground, Bheema was unable to control his anger and grief and start thumping his chest and knelt down asking Yudhisthira for the answer for the death of the best archer.Yudhisthira, still calmed and composed, replied back that he was brilliant but conceited and over confident about his archery skills .He considered himself the best archer even without knowing the skills of the opponents.That was the reason for his demise.
Hearing those words from Yudhisthira, Bheema fell down.Your overconfidence in your strength and power is the reason for your falling, told Yudhisthira.
Now , Yudhisthira was the only surviving pandavas and was accompained by the dog on his ascent. As he reached the gates of heaven, Indra the God of heaven himself arrived at the gates to take Yudhisthira to heaven in his chariot .Indra told Yudhisthira that he possessed extra-ordinary abilities and qualities and was virtueous and better than all of the Pandavas in matter of Dharma. Yudhisthira asked Indra to allow the dog to accompany him to the heaven.Yudhisthira told him that the dog also possesses those qualities as it was also able to ascent the mountain and reach the gates of heaven.Thus dog must be allowed to accompany him. Indra rejected the plea. Yudhisthira turned and began his descent and that he would only go inside with the dog. Then the dog, who was actually the God Dharma in disguise appeared and blessed Yudhisthira and told him that it was the last test for him before he went into the heaven and he successfully cleared that.