in Lock Industry of Aligarh Neera Burra Some 7,000-10,000 children below the age of 14 years work in the traditional lock industry in Aligarh in breach of the Factories Act and the more recently enacted Child Labour (Prohibition and Regulation) Act. Earning 5 to 10 rupees a day, the children often work more than 20 hours at a stretch, inhaling vast quantities of metal dust and emery powder THE lock industry of Aligarh is over a hundred years old and is considered to be the traditional occupation of the people of Aligarh district in Uttar Pradesh. It is concentrated, however, in Aligarh city and its adjoining areas.