Balaram & Budha Avataras

Balaram was the older brother of Shri Krishna. He was so powerful that he, single handedly, at a very tender age, killed the great demon, Asuradhenuka, who had the form of a ass. Another demon tried to carry off Balaram on his shoulders, but the young boy beat out the demon's brain with his fist. When Shri Krishna went to Mathura, Balaram accompanied him and supported him till Kamsa was killed by Shri Krishna. He also taught Duryodhan and Bheem, the use of the mace. His chief weapon is ploughshare (hal) and therefore called Haldhar. Those who hold the view that Balaram was not incarnation of Lord Vishnu but of the great serpent Sesha on whom Lord Vishnu reclines, claim that the ninth avatar is Buddha.

With the departure of Lord Krihsna (Krishna Avatar), the age of Kali set in, in this age, the true devotion to vedas was replaced by empty rituals. To enlighten the world in such times, Lord Vishnu descended the earth as Buddha, the enlightened one.
Lord Buddha was born to Mayadevi, the wife of Sakya King Shuddhodana, in the Lumbini forest, and named Siddhartha.
Buddha advocated the Middle Path, in which he offered a balanced, harmonious way of life, steering between two extremes of self-indulgence and total abstinence. Buddhism rests upon four Noble Truths:
Suffering is universal,
It is caused by desire and yearning
Suffering can be prevented and overcome and
Eradication of desires can lead to removal of suffering.
To prevent suffering one has to conquer craving and desire and this conquest leads to the attainment of nirvana or complete enlightenment