Sorry but we usually don’t do bribery in USA the way you do in India.
Unless of course, you’re a Congressperson.
There is no backlog. You are all temporary guests and Y2K visa overstayers.
You’re not legal and you’re not immigrants.
No one promised you anything. The US isn’t your cookie jar. And it’s illegal under Federal law for international students to file for green cards. Why does the US admit millions of these criminal students every year?
We have yet to see anyone from Pakistan or Bangladesh open a giant IT shop, flood in millions of H-1B fraud and kick millions of Americans out of their jobs. It’s probably why they get green card and you don’t.
Stop being delusional. You were brought in to be captive slaves who can’t change jobs and the US gov’t is not about to give you the freedom a green card would entail. Keep screaming for decades, it’s ain’t gonna happen.