corrigendum : manpower outsourcing services - man-days based - non-it technical; skilled; boiler operator, operator, electrician, c&i technician and ac mechanic , manpower outsourcing services - man-days based - non-it technical; skilled; boiler operator, operator, electrician, c&i technician and ac mechanic ot hours , manpower outsourcing services - man- days based - non-it technical; unskilled; technical helper , manpower outsourcing services - man-days based - non-it technical; unskilled;