For the past 26 years, K. Munisamy, 50, has been following a routine. Every morning, in a blue shirt and trousers, he starts work at one of the milling units of an auto parts maker in Chennai. He clocks in eight hours before going home. “During good times, I used to work over time and earn more,” says the father of two, who supports a six-member family, which includes his parents. “I used to earn enough (₹22,000 a month) to meet the expenses, but that will change,” he says. His colleague, Kumar, 35, is in a similar situation. “My children are in school and my wife doesn’t have a job. I am the only earning member in my family (he earns about ₹17,000 a month) and I have to search…