[aanm1988]

Indentured servitude was a system where you would enter into a basically unbreakable contract to work in exchange for passage to america (specific case, but general idea). Once you got here the captain of the ship would sell off the contract to whoever and that person basically owned you until it was done. You don't get to quit, they will have someone hunt you down and bring you back. You are not much more than a slave until you finish the contract.

There was good reasons why it was outlawed along with slavery in the 13th amendment.

Having to jump through some hoops to switch jobs, or having to leave the country if you quit/get fired is not nearly the same thing. Not even close.

Getting an I140 takes about a year, and you can transfer it after 180 days. Yes it takes a long time for Indians to get the actual card. That's not a result of companies trying to get you into servitude, it's a result of poor immigration policy and massive demand from India.