The core story of the work is that of a dynastic struggle for the throne of Hastinapura, the kingdom ruled by the Kuru clan.
The two collateral branches of the family that participate in the struggle are the Kaurava and the Pandava.
Although the Kaurava is the senior branch of the family, Duryodhana, the eldest Kaurava, is younger than Yudhishthira, the eldest Pandava.
Both Duryodhana and Yudhishthira claim to be first in line to inherit the throne.

The struggle culminates in the great battle of Kurukshetra, in which the Pandavas are ultimately victorious.
The battle produces complex conflicts of kinship and friendship, instances of family loyalty and duty taking precedence over what is right, as well as the converse.

The Mahābhārata itself ends with the death of Krishna, and the subsequent end of his dynasty and ascent of the Pandava brothers to heaven.
It also marks the beginning of the Hindu age of Kali Yuga, the fourth and final age of humankind, in which great values and noble ideas have crumbled, and people are heading towards the complete dissolution of right action, morality and virtue.
The core story of the work is that of a dynastic struggle for the throne of Hastinapura, the kingdom ruled by the Kuru clan. The two collateral branches of the family that participate in the struggle are the Kaurava and the Pandava. Although the Kaurava is the senior branch of the family, Duryodhana, the eldest Kaurava, is younger than Yudhishthira, the eldest Pandava. Both Duryodhana and Yudhishthira claim to be first in line to inherit the throne.
The struggle culminates in the great battle of Kurukshetra, in which the Pandavas are ultimately victorious. The battle produces complex conflicts of kinship and friendship, instances of family loyalty and duty taking precedence over what is right, as well as the converse.
The Mahābhārata itself ends with the death of Krishna, and the subsequent end of his dynasty and ascent of the Pandava brothers to heaven. It also marks the beginning of the Hindu age of Kali Yuga, the fourth and final age of humankind, in which great values and noble ideas have crumbled, and people are heading towards the complete dissolution of right action, morality and virtue.
Mahabharata