In fact, the real Bindusara hated Ashoka so much, that when he was on his deathbed and Ashoka suggested that he be declared his father's real heir, Bindusara died from shock. ... The father even conspires with him in an unsuccessful attempt to kill his other two sons.

Why did Bindusara hated Ashoka?

Bindusara did not like Ashoka because his "limbs were hard to the touch". Another legend in Divyavadana names Ashoka's mother as Janapadakalyani. According to the Vamsatthappakasini (Mahavamsa Tika), the name of Ashoka's mother was Dhamma.

Did Ashoka kill his father?

When Bindusara refused to do so, Ashoka declared that if the throne was rightfully his, the gods would crown him as the next king. ... After his father's death, Ashoka had his eldest brother killed, and ascended the throne.