Sl. No

Agro-climatic Zone

Characteristics

1

Southern Arid Zone

Tirunelveli district is located in southern part of TamilNadu and the river Thamirabarani flows across the district. The district received rainfall during all the seasons. The average rainfall is 814.88mm. The maximum precipitation is contributed by North East Monsoon (60%) followed by the South West Monsoon (20%)

S. No

Soil type

Characteristics

Area in ha

1

Red soil

Acidic to neutral

72670

2

Block soil

Neutral to Alkaline

64225