It said that a total of 15,812 contractors and 3,81,831 contract workers also registered on this portal till Tuesday. "Along with this, a total of 48,312 number of letter of acceptance (LOA), Rs 3,49,590 lakhs (More than Rs 3,495 crore) wage amount and about 6 crores man-days are also registered on this portal across Indian Railways," it said.