I (985–1014) invited weavers from Saurashtra, Gujarat to migrate to Kanchi. The craft increased with the mass migration of weavers from Andhra Pradesh in the 15th century during the Vijayanagara rule. The city was razed during the French siege of 1757, but weaving re-emerged in the late 18th century. All major nationalised banks such as Vijaya Bank, State Bank of India, Indian Bank, Canara Bank, Punjab National Bank, Dena Bank and private banks like ICICI Bank have branches in Kanchipuram. All these banks have their Automated teller machines located in various parts of the city. Human rights Kanchipuram has more than the national average rate of child labour and bonded labour. The local administration is accused of aiding child labour by opening night schools in Kanchipuram from 1999. There is an estimated 40,000 to 50,000 child workers in Kanchipuram compared to 85,000 in the same industry in Varanasi. Children are commonly traded for sums of between 10,000 and 15,000 (200 – $300) and there are cases where whole families are held in bondage. Child labour is prohibited in India by the Children (Pledging of Labour) Act and Child Labour (Prohibition and Regulation) Act, but these laws are not strictly enforced. Transport, communication, and utility services The ChennaiBangalore National Highway, NH 4 passes the outskirts of the city. Daily bus services are provided by the Tamil Nadu State Transport Corporation to and from Chennai, Bangalore, Villupuram, Tirupathi, Thiruthani, Tiruvannamalai, Vellore, Salem, Coimbatore, Tindivanam and Pondicherry. There are two major bus routes to Chennai, one connecting via Poonamallee and the other via Tambaram. Local bus services are provided by The Villupuram division of Tamil Nadu State Transport Corporation. As of 2006, there were a total of 403 buses for 191 routes operated out of the city. The city is also connected to the railway network through the Kanchipuram railway station. The ChengalpetArakkonam railway line passes through Kanchipuram and travellers can access services to those destinations. Daily trains are provided to Pondicherry and Tirupati, and there is a weekly express train to Madurai and a bi-weekly express train to Nagercoil. Two passenger trains from both sides of Chengalpattu and Arakkonam pass via Kanchipuram. The nearest domestic as well as international airport is Chennai International Airport, located at a distance of 72 km from the city. The proposed New Chennai International Airport is to be built in Parandhur near Kanchipuram. Telephone and broadband internet