5 million technicians and a million clerical staff, the report said.1 million engineers, 1.The expansion could employ some of the nearly 100,000 engineering graduates and tens of thousands of rural migrant workers entering the job market every year.Knight Frank expects India’s construction sector, along with real estate services, to account for about one-fifth of the economy by 2030, employing 100 million workers.S&P Global on Thursday projected the Indian economy to grow by an average annual rate of 6.