The correct answer to this question is option 4: 1 and 3.

Eripatti:

Eripatti refers to land that was set apart for the maintenance of the village tank. The village tank was a vital source of water for irrigation and other uses, and its maintenance was crucial for the agricultural economy of the village. The revenue generated from this land was used to fund the maintenance of the village tank, which was typically managed by a committee of village elders. This system of revenue allocation was prevalent in the Tamil-speaking regions of South India during the medieval period.

Ghatikas:

Ghatikas were colleges that were generally attached to the temples. These institutions served as centers of learning and scholarship, and were patronized by the rulers and wealthy individuals of the time. The curriculum of ghatikas included subjects such as grammar, logic, philosophy, and literature. The teachers and students of ghatikas were often Brahmins, and the institutions themselves were typically managed by Brahmin trustees. Ghatikas played an important role in the development of Indian culture and intellectual traditions.

Taniyurs:

Taniyurs were villages donated to a single Brahmin or a group of Brahmins. This practice was prevalent during the early medieval period in South India, particularly in the region of Tamil Nadu. The donation of villages to Brahmins was seen as a form of religious merit-making, as it was believed to earn the donor spiritual blessings and good karma. The Brahmins who received the villages were typically responsible for the administration and management of the land, including the collection of taxes and the resolution of disputes among villagers.

In conclusion, the correct pairings are Eripatti with land, revenue from which was set apart for the maintenance of the village tank, and Ghatikas with colleges generally attached to the temples. Therefore, option 4 is the correct answer.