What it is
eservices.tn.gov.in is the Tamil Nadu government's portal for the revenue department's land records, run through the state's e-governance framework. Through it, residents can apply for a patta transfer and can view or download a patta-chitta extract for a survey number once you have selected the district, taluk and revenue village. Revenue certificates such as a legal heir or community certificate are not issued here; those are applied for through the state's separate e-Sevai portal. It sits alongside tnreginet.gov.in, which handles registration-department services such as encumbrance certificates, rather than revenue-department ones.
Why it matters when you buy
Before or during a purchase, you will likely use eservices.tn.gov.in to pull the current patta-chitta for the property and to confirm the patta is in the seller's name, since a patta not yet transferred to the seller is a signal to ask questions before proceeding. If a patta transfer is needed after purchase, the application is also filed through this portal, tracked online, and eventually processed at the taluk office covering the property.