Tirunelveli District Profile

• Tirunelveli district is bounded by Virudhunagar district in the north, Thoothukudi district in the east, in the south by Gulf of Mannar and by Kerala State in the west and Kanyakumari in the southwest.
• The District lies between 08º08'09’’N to 09º24'30’’N Latitude, 77º08'30’’E to 77º58'30’’E Longitude and has an area of 6810 sq.km.

Physiography and Drainage:

• Tirunelveli district falls in Tamiraparani river basin, which is the main river of the district.
• The river has a large network of tributaries which includes the Peyar, Ullar, Karaiyar, Servalar, Pampar, Manimuthar, Varahanatha, Ramanathi, Jambunatha, Gadana nathi, Kallar, Karunaiyar, Pachaiyar, Chittar, Gundar, Aintharuviar, Hanumanathi, Karuppanathi and Aluthakanniar draining the district.
• The river Tamiraparani originates from the hills in the west and enters Thoothukudi District.
• The other two rivers draining the district are river Nambiar and Hanumanathi of Nanguneri taluk in the south that are not part of the Tamiraparani river basin.
• The small part of the district in the northern part falls in river Vaippar basin.

Rainfall:

The average annual rainfall and the 5 years rainfall collected from IMD, Chennai is as follows:

Geology:

Ground Water Level:

The Groundwater levels from the 63 number of observation wells of TWAD have been analyzed for Post-Monsoon and Pre-Monsoon. 5 years average Ground water level in m Below Ground Level for pre and post monsoon is as follows:

Sustainability:

With a view to enhance the Sustainability of the drinking water sources, recharge structures are being implemented by the TWAD Board under various State and Central Government assistance.

The Recharge Structures implemented so far in the district are as under.

Categorization of Firkas:

The status of Categorization of firkas as of March 2020 for the District in is shown below.

Rural Habitations

Total No. of Rural Habitations: 2511