Over 8,000 children are working in garment factories in Delhi, a report revealed on Friday. A survey — The Hidden Workforce — by Save the Children organisation was released by Women and Child Development Minister Sandeep Kumar at Constitutional Club here.According to the survey, conducted across five districts of Delhi in 14 garment industry hotspots, 70 per cent child labourers could be girls, while 87 per cent of the total were found to be working in home settings and only 13 per cent work in addas (household-based units where unrelated adults and children work together).