Are most of the OPT visa holders from India working as recruiters ?
The large number of Indian recruiters that you see are actually working from India, with location in LinkedIn set to US.
Thats certainly possible. Just like they run other fraud schemes.
I don't agree to that. The location is set to the headquarters and they work based on US time. Cheaper for the company and doesn't make a difference to the candidates.
Opt is not a visa. Based on my personal experience most of my friends from school work as SPMs or Consultants.
OPT is like a visa where you get an EAD card (upto 3 years of work permit) and you can pretty much do anything even unpaid volunteer work. Its a sham.