Ex-TCS employee here: Seen this every year during my tenure at TCS. Every year in February / January project teams are requested by HR to send "list of eligible candidates" to apply for H1-B visa. The eligibility is weirdly composed, like they keep out graduates who have CS background and senior associates out of it. This is to ensure the associates stick longer with the company once they move to US.

Finally the list comprises of 1000's of applicants for whom the Job Position is either falsely certified by Labour Department (LCA). (Dont understand why the Labour department never carries out an investigation).