The 19 Sub-Parvas of Adi Parva: A Summary

Note:
I refer to a sub parva name of Adi Parva as Kashidas does not separate his work into sub-parvas. I thought of sharing a summary/ brief of which sub-parva contains what.

Sub-Parvas of Adi Parva of the Mahabharata (from the Mahabharata of Vyasa): With Key Episodes

Sub-Parva	What It Contains	Important Story Titles / Episodes
Anukramanika Parva	The formal introduction to the Mahabharata. Explains the scope, authority, structure, and transmission of the text across generations of sages.	Ugrashrava Sauti arrives at Naimisha Forest (Naimisharanya); Vyasa composes the epic. As I had stated earlier, the Mahabharata of Kashidas does not talk about Ganesha acting as the scribe. This is not there in the Mahabharata of Bibek Debroy, but the version translated by KMG has this. The version of Mahabharata published by Gita Press, also contains this.
Parvasangraha Parva	A structured summary of the contents of the Mahabharata and its major books. Functions as a table of contents with thematic previews.	Enumeration of the eighteen parvas; outline of the Kuru-Pandava conflict; preview of the war and the destruction of the Yadavas. This summary sub-parva is skipped by Kashidas.
Paushya Parva	Introduces the frame narrative style through sage traditions, vows, and tests of discipline.	Aruni blocks a field embankment with his body; Upamanyu serves his guru; Uttanka seeks guru-dakshina and recovers Queen Paushya’s earrings from the serpent realm.
Pauloma Parva	Stories of the Bhrigu lineage, family continuity, and the history of sages.	Puloma rakshasa abducts Bhrigu’s wife; birth of Chyavana; Ruru and Pramadvara; Ruru’s hatred of serpents.
Astika Parva	Explains Janamejaya’s snake sacrifice and how Astika saves the serpent race.	Kadru and Vinata rivalry; Garuda’s birth and stealing of amrita; Parikshit cursed by Shringi; Janamejaya’s sacrifice stopped by Astika.
Adivansavatarana Parva	Describes divine incarnations entering earthly dynasties before the Kuru conflict.	Gods and asuras incarnate among humans in preparation for the coming conflict.
Sambhava Parva	Largest foundational section; contains dynastic history and births of major characters.	Shakuntala and Bharata; Kacha and Devyani; Yayati; Shantanu and Ganga; birth of Bhishma; birth of Vyasa; births of Dhritarashtra, Pandu, and Vidura; birth of the Pandavas and Kauravas; Drona and Ekalavya.
Jatugriha Parva	The first major assassination attempt against the Pandavas.	Purochana builds the lacquer house; Vidura’s warning; Pandavas escape from the fire.
Hidimva-vadha Parva	Forest survival period after escaping the lacquer house.	Bhima kills the rakshasa Hidimba; marriage to Hidimbi; birth of Ghatotkacha.
Vaka-vadha Parva	Pandavas live anonymously while Bhima protects the local people.	Stay at Ekachakra; Bhima fights and kills Bakasura to save a Brahmin family.
Chaitraratha Parva	Encounters with celestial beings and expansion of royal lineages.	Arjuna defeats Gandharva Chitraratha; story of Tapati.
Swayamvara Parva	Re-emergence of the Pandavas into public life.	Draupadi’s swayamvara; Arjuna wins the archery challenge while disguised as a Brahmin.
Vaivahika Parva	Marriage settlement and alliance with the Panchala kingdom.	Kunti’s command; Draupadi becomes the wife of all five Pandavas; Krishna recognizes the Pandavas.
Viduragamana Parva	Political normalization after the Pandavas’ survival is revealed.	Vidura brings the Pandavas back to Hastinapura for reconciliation.
Rajya-labha Parva	Establishment of the Pandavas as rulers.	Division of the kingdom; Pandavas receive Khandavaprastha.
Arjuna-vanavasa Parva	Arjuna’s self-imposed exile and pilgrimage.	Arjuna breaks the privacy agreement; pilgrimage and marriages with Ulupi and Chitrangada.
Subhadra-harana Parva	Alliance between the Pandavas and the Yadavas.	Arjuna visits Dwaraka and abducts Subhadra .
Haranaharana Parva	Transitional section regarding family integration.	Formal acceptance of the marriage of Arjuna and Subhadra.
Khandava-daha Parva	The military rise of Krishna and Arjuna.	Burning of the Khandava forest; Maya Danava is spared and builds the Maya Sabha.

If you are interested in similar summaries, let me know in the comments and I will share something similar, for the other parvas. 

There are similar sub-parva divisions for the other parvas also.