Tirupur: Textile knitting units on Wednesday went on a two-day strike, demanding wage hike. They said many knitwear units were not ready to increase the wage, forcing them to go on strike, which is expected to affect Rs 100 crore business.There are about 700 knitting and 350 collar making units in the dollar city. Pointing out that building rent, labour charges and other overheads have been doubled, he said they had been asking knitwear units to increase the knitting job work charges, but in vain.“So, the two associations decided to increase the job work charges by 20%-25% per kg. However, many of them are not ready to provide the revised charges, citing GST implementation and inflation as reasons,” Rathinasamy said. We also conveyed this to knitwear unit associations eight months ago.