Tiruvallur district is an administrative district in the state of Tamilnadu in India. Tiruvallur a town near to Chennai city , giving it a special industrial and commercial importance.  Existence of many academic institutions , production units , business establishments , religious monuments and temples further enhances the strategic importance of Tiruvallur district for the state of Tamil Nadu. This district headquarters is at Tiruvallur down.

Tiruvallur is a town located on the Chennai to Tirupathi highway , approximately 44 kilometers from Chennai.  The railway station falls mid-way between the Chennai to Arakkonam railway line.  A small town ,  and now the district headquarter of the recently made Tiruvallur district is developing very fast.  It is one of thirty-two districts in Tamil Nadu.  Previously , Tiruvallur was a town in the district named Chengalpattu.  Tiruvallur is the name of both the town as well as the district.

Revenue Divisions : 1. Ambattur 2. Ponneri 3. Thiruvallur 4. Tiruttani   

Taluks : 1. Ambattur  2. Gummidipoondi 3. Madhavaram 4. Pallipattu 5. Ponneri  6. Poonamalle  7. Tiruttani 8. Thiruvallur 9. Uthukkotai. 

Corporations and Municipalities : 1. Avadi  2. Poonamalle 3. Tiruttani 4. Thiruvallur 5. Tiruverkadu 

This district has the 10 Town panchayats, 705 Revenue villages, 527 Panchayat villages 

Tiruvallur district occupied area of  3,422 km² and population of 3,725,697 in 2011 census. The male and female were 1,876,062 and 1,852,042 respectively. The sex ratio is 983 females for 1000 males.

Tiruvallur district borded north side by Andra Pradesh state, east side by Bay of  Bengal, southeast side by Chennai district and south side by Kanchipuram, west side by vellore district.

Tiruvallur district famous tourist places are Poondi Reservoir, Pulicat, Subramaniya Swamy Temple(Tiruttani), Murugan Temple(Ponneri), Veeraraghava Perumal Temple(Tiruvallur).

Tiruvallur Bus Stand near by Chennai Tiruvallur High Road, MGM Nagar, and Railway station near by Periyakuppam, Tiruvallur.

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