The Mahabharata, attributed to Vyasa, is the longer of India’s two Sanskrit epics and arguably the longest sustained poem in any literary tradition. The Bhandarkar Oriental Research Institute (BORI) critical edition runs to 73,784 shlokas in 18 books (parvas), with the Harivamsha supplement bringing the total to about 79,857 verses. The popular Vulgate adds substantial later interpolations and runs to about 100,000 verses. The core story is the conflict between two sets of cousins, the five Pandavas and the hundred Kauravas, for the throne of Hastinapura, culminating in the eighteen-day war at Kurukshetra. This summary tracks the 18 parvas in order.
The composition layers
The text itself describes its own evolution. The earliest layer, Jaya (Victory), is said to have 8,800 verses attributed to Vyasa. This expanded into the Bharata at 24,000 verses as recited by Vaishampayana. The final Mahabharata at over 100,000 verses is the version recited by Ugrashrava Sauti to the sages at the forest of Naimisha. Scholars generally date the main composition window between the 4th century BCE and 4th century CE. The 18 parvas correspond roughly to the structural and narrative divisions of the war and its aftermath.
The 18 parvas in order
- Adi Parva: the origins, including the births of the Kuru ancestors, the births of the Pandavas and Kauravas, and the marriage of Draupadi.
- Sabha Parva: Yudhishthira’s Rajasuya, the dice game, the disrobing of Draupadi, the exile.
- Vana Parva (Aranyaka): twelve years of forest exile, including the Yaksha Prashna and Arjuna’s penance.
- Virata Parva: the thirteenth year, spent incognito in the court of King Virata.
- Udyoga Parva: the diplomatic preparations for war, Krishna’s failed peace mission, Karna’s true parentage revealed.
- Bhishma Parva: the first ten days of war under Bhishma, containing the Bhagavad Gita (chapters 23–40).
- Drona Parva: days eleven to fifteen under Drona, including the death of Abhimanyu and the killing of Jayadratha.
- Karna Parva: days sixteen and seventeen under Karna, ending with Arjuna killing Karna.
- Shalya Parva: the eighteenth day under Shalya, Duryodhana’s mace fight with Bhima.
- Sauptika Parva: the night raid by Ashwatthama on the Pandava camp.
- Stri Parva: the lament of the women on the battlefield.
- Shanti Parva: Bhishma’s discourses to Yudhishthira on dharma, statecraft and liberation.
- Anushasana Parva: further Bhishma instructions, including the Vishnu Sahasranama.
- Ashvamedhika Parva: Yudhishthira’s horse-sacrifice and the Anugita.
- Ashramavasika Parva: the elders’ retirement to the forest and their deaths in a wildfire.
- Mausala Parva: the destruction of the Yadava clan at Prabhasa.
- Mahaprasthanika Parva: the final journey of the Pandavas and Draupadi to the Himalayas.
- Svargarohana Parva: Yudhishthira’s ascent to heaven and the closing frame.
The Adi to Virata parvas: the family conflict
The Adi Parva opens with the lineage of the Kurus and the births of Bhishma, Dhritarashtra, Pandu and Vidura. Pandu has five sons by divine paternity: Yudhishthira (by Dharma), Bhima (by Vayu), Arjuna (by Indra), Nakula and Sahadeva (by the Ashvinis). Dhritarashtra, the blind elder brother, has a hundred sons by his queen Gandhari, the Kauravas led by Duryodhana. The cousins grow up together at Hastinapura under the tutelage of Drona and Kripa, with Bhima and Duryodhana clashing from early childhood. The Pandavas escape an attempted burning at Varanavata, marry Draupadi at her swayamvara, and receive half the kingdom, founding Indraprastha. The Sabha Parva turns dark: Yudhishthira loses everything in a rigged dice game with Shakuni, Draupadi is publicly humiliated, and the Pandavas are sent into twelve years of forest exile followed by one year of concealment, which they spend at the court of Virata.
The Udyoga and the start of war
The Udyoga Parva is the long diplomatic effort to avoid war. Krishna himself, acting as the Pandavas’ emissary, asks for only five villages as a settlement. Duryodhana refuses everything. Both sides assemble armies (eleven akshauhinis for the Kauravas, seven for the Pandavas), and Krishna agrees to serve as Arjuna’s charioteer. On the eve of war, Kunti tells Karna that he is her firstborn, the elder half-brother of the Pandavas, born before her marriage to Pandu. Karna refuses to switch sides. The Bhishma Parva opens with the two armies arrayed at Kurukshetra and Arjuna asking Krishna to drive him between the lines so he can see whom he is about to fight. He sees his teachers, cousins and elders; he refuses to fight. Krishna’s reply, the Bhagavad Gita, occupies eighteen chapters and 700 verses (six in the introductory question, the rest in Krishna’s response).
The eighteen days of war
The Bhishma, Drona, Karna and Shalya Parvas track the eighteen days of the Kurukshetra war under the four successive commanders of the Kaurava army. Bhishma falls on the tenth day, pierced by Arjuna’s arrows from behind Shikhandi, and remains on a bed of arrows until his death after the war. Drona is killed on the fifteenth day after a false report (engineered by Yudhishthira) that his son Ashwatthama has died. Karna is killed on the seventeenth day by Arjuna while his chariot wheel is stuck in the earth. Duryodhana is felled on the eighteenth day by Bhima, who breaks his thighs in mace combat against the rules of single combat. The Sauptika Parva that night is the worst loss for the Pandavas: Ashwatthama, in a vengeful raid, slaughters the sleeping Pandava sons (the Upapandavas), Draupadi’s five sons by the five brothers, in their tents.
The Shanti Parva and after
The Stri Parva mourns the dead. The Shanti and Anushasana Parvas, together comprising about one-quarter of the entire Mahabharata’s verse count, contain Bhishma’s deathbed instructions to the new king Yudhishthira on rajadharma (statecraft), apaddharma (dharma in adversity) and mokshadharma (the path to liberation). The Vishnu Sahasranama, the thousand names of Vishnu, sits in Anushasana Parva chapter 149. Yudhishthira performs the Ashwamedha horse-sacrifice in the next parva. The Yadava clan including Krishna’s relatives self-destructs at Prabhasa in the Mausala Parva, and Krishna himself leaves his body after being struck in the foot by a hunter’s arrow. The Pandavas, knowing the Kali Yuga has begun, install Parikshit as king and walk into the Himalayas in the Mahaprasthanika Parva. They fall one by one. Yudhishthira alone, with a stray dog who turns out to be Dharma, ascends to heaven in the Svargarohana Parva.
Why the text is structured this way
For what it’s worth, treating the 18 parvas as a pyramid with the four war parvas (Bhishma, Drona, Karna, Shalya) at the apex makes the architecture visible. The first five parvas build up the dynastic conflict; the four war parvas are the core action; and the eight post-war parvas process the consequences philosophically, politically and personally. The Bhagavad Gita sits at the exact pivot point, on the morning of the first day of battle, framed by the longer arc of dharma in collapse.
Common questions
Who wrote the Mahabharata?
Tradition attributes the composition to Vyasa, who also features as a character in the text and is the grandfather of both the Pandavas and the Kauravas. Modern scholarship treats the Mahabharata as a layered text composed over several centuries, with the core narrative possibly dating to a historical kernel and the philosophical and didactic additions accumulating later. The BORI critical edition reflects this layered history by indicating which verses are present across all major manuscripts and which are localised.
Is the Bhagavad Gita a separate text?
No, the Bhagavad Gita is chapters 23 through 40 of the Bhishma Parva, the sixth book of the Mahabharata. It is 700 verses across 18 chapters, set on the battlefield on the first day of the eighteen-day war. The Gita has circulated as an independent text for centuries because of its self-contained philosophical content, but textually it is embedded in the Mahabharata.
Are the Pandavas and Kauravas full brothers or cousins?
They are first cousins. Pandu (father of the Pandavas) and Dhritarashtra (father of the Kauravas) are half-brothers, both fathered on the widows of King Vichitravirya by Vyasa under the levirate custom of niyoga. So the Pandavas and Kauravas share a common grandfather lineage through Vichitravirya and a common grand-uncle in Vyasa, and they grow up together at Hastinapura.
One limitation worth noting
This summary follows the BORI critical edition structure and verse counts. The popular Gita Press edition and other Vulgate texts contain substantial additional material, particularly in the Shanti and Anushasana Parvas, including episodes (such as the Yaksha Prashna’s expanded form and certain didactic interpolations) that BORI flags as later additions. A reader using the Gita Press text will encounter sections that the critical edition omits, and the verse numbers will not align between the two.
For a chapter-level overview, see Mahabharata on Wikipedia. The BORI critical edition is the standard scholarly text, and the Bibek Debroy English translation of it runs to ten volumes.
