Likewise there are 12 blocks, five municipalities and ten town panchayats which implement rural development activities.

from "Tiru" (highness – a common prefix in South India for temple towns or cities) and "evvull" (where do I sleep?).

So, Tiruvallur means, a place/town where, the god, Veera Raghavar asked a saint for a place to sleep for a night.

Today Tiruvallur is well known, one of the reason being the Veeraragava Temple, where Amavasya (new moon) is considered an auspicious day for the lord and so for the people of the town.

According to the said bifurcation Tiruvallur revenue division which included Tiruvallur, Tiruttani taluks and Uthukkottai and Pallipattu sub-taluks separated from Chengalpattu district along with Ponneri and Gummindipoondi taluks of Saidapet revenue division and formed this new district.

At present this district comprises 9 taluks, namely Avadi, RK Pet, Ponneri, Gummidipoondi, Uthukottai, Tiruvallur, Poonamallee, Tiruttani, and Pallipattu.

The town of Pulicat was the earliest Dutch possession in India founded in 1609 which was ceded to the British in 1825.

The soil found nearer the sea coast is of the inferior erinaceous type which is most suited for raising casuarinas plants.

The district has many leading industries like Kamarajar Port, North Chennai Thermal Power Station, National Thermal Power Corporation, L&T Ship Build, NIOT, ITC, IOCL, HPCL, BPCL, Hindustan Motors and CPCL, Ennore (Tondiarpet).

In retail spending, the Thiruvallur district emerges third in India, only after Noida and SW Delhi surpassing Bangalore and Mumbai by a clear margin.

Imprisonment of up to three years and fine up to ₹5,000 are applicable according to the provisions of the Tamil Nadu Animals and Birds in Urban Areas (Control and Regulation) Act, 1997.

Police have also threatened actions according to the Indian Penal Code and Prevention of Cruelty to Animals Act, in addition the stray cattle would be sent to cow sheds operated by the government.

The authorities of Tiruvallur district have also set up call center to report incidents of stray cattle.