Economy of Tiruvallur district in Tamil Nadu is largely dependent on agriculture and allied activities. About forty seven percent of the total work forces of this district are engaged in the agricultural sector. Some of the major crops grown in the district are rice, cumbu - ragi, green gram, sugarcane, black gram and groundnut. Apart from this, certain horticultural crops like mango, vegetables and guava have also bean cultivated successfully. Apart from seasonal rivers like Kallar, Kesathaliar, Nandi, Aravar, Coovam and Buckhingham Canal there are no perennial rivers in this district. As these seasonal rivers are not sufficient, irrigation through tanks, open wells and tube wells are commonly found in the district of Tiruvallur.
Animal husbandry is one of the subsidiary occupations of this district due to the presence of a number of small and marginal farmers. It also contributes to some extent to the economy of this district. Presently, there are four Government Schemes in operation including Backyard poultry farm, Special Animal Husbandry Programme, Buffalo Rearing Scheme and special campaign to protect animals. There are five Veterinary Hospitals, twenty four Veterinary Dispensaries, seventy seven sub-centers and fourteen mobile veterinary units catering to the needs of the farming community in this district of the Tamil Nadu state.
The Tiruvallur district in the Indian state of Tamil Nadu is having a coastal area of 49803 hectares and has a coast line of eighty kilometers for marine fisheries. Prawn and shrimp culture is famous at the coast line of Minjur and Gummidipoondi. The total fish production in this district is to the tune of 11372 tonnes. The district of Tiruvallur does not possess any precious mineral resources. However it has a few varieties of major and minor minerals. Some of the major minerals found here are river sand, gravel, blue metal, brick clay, etc and the minor minerals found in this district are lime shell, stoneware clay, silica sand, etc.
Tiruvallur District is one of the fastest developing in the Tamil Nadu state in terms of industrial development. There are several leading industries like Madras Refineries, Madras Fertilizers, Manali Petro Chemicals, MRF, Ashok Leyland, TI Cycles, Britannia India Ltd, Parry India Ltd and Hindustan Motors. It also boasts of the Ennore Thermal Power Station and the Avadi Tank Factory. The District has sixteen Industrial Estates, all in operation and eleven of them are developed by the Government and five by private organization. This district has sixteen thousand nine hundred and forty Small Scale Industries, notable among them being food, textile, wood, engineering, chemical, non-metallic and leather industries.
