Greatness of Gaya:
1.
Gaya Overview: Penance of Gayasura, Gayasura offering body for Yagna, Dharma Shila on Gayasura, Yagna of Brahma on Gayasura, Gadadhara on Gayasura, Gadadhara as Phalgu-Tirtha with devas, Sharaddha and Pinda-Dana in Gaya.
(Vayu Purana - 105)
2.
Penance of Gayasura: Gayasura performed penance and attained great Purity as boon.
(Vayu Purana - 106)
3.
Gayasura offering his body for Yagna: Lord Brahma asked Gayasura for his body to perform a Yagna. Gayasura offered his body for the Yagna.
(Vayu Purana - 106)
4.
Lord Brahma performing Yagna: After Gayasura offered his body, Lord Brahma performed the Yagna.
(Vayu Purana - 106)
5.
Lord Brahma trying to steady Gayasura: After completion of the Yagna, Lord Brahma fixed a sacrificial pole on Gayasura (to permanently fix his body). Gayasura started moving. Lord Brahma tried various means to steady the body of Gayasura, but Gayasura still moved.
(Vayu Purana - 106)
6.
Lord Vishnu and Devas steadying Gayasura and giving boons: Lord Vishnu steadied Gayasura with his Gada and came to be known as Adi-Gadadhara. Other Devas stationed on Gayasura. Gayasura asked the boon of Gaya Kshetra after his name.
(Vayu Purana - 106)
7.
Lord Brahma cursing brahmanas: Lord Brahma offered various items to the brahmanas and told them not to beg from anyone. When they still begged out of greed, Lord Brahma cursed them.
(Vayu Purana - 106)
8.
Location of the body of Gayasura: The shira (head) of Gayasura is in Gaya (Gayashira), the nabhi (navel) is in Viraja mountain, and the pada (feet) is in Mahendra mountain.
(Vayu Purana - 106)
9.
Story of Dharma Shila: Story of how Dharmavrata became Dharma Shila. the holiest object on the earth.
(Vayu Purana - 107)
10.
Story of Adi-Gadadhara: The Gada was made by Vishwakarma with the bones of demon Gada. Lord Vishnu wielded it to kill demon Heti and became known as Gadadhara. Later on, Lord Vishnu stood on the Dharma Shila with that Gada to make Gayasura steady. Thereby he became known as Adi-Gadadhara.
(Vayu Purana - 109)
11a.
Various Tirthas of Gaya
11b.
Great personages performing Shraddha in Gaya
11c.
Gaya Shraddha sequence
12.
King Gaya relieving brahmanas from curse