Can I apply for OCI card?

You need to address this question to an Indian Immigration lawyer, and Avvo.com is only for American lawyers.

How can I go back to India with out any document ?

This is more of an issue of Indian law than it is US immigration law, but I suppose International has the Embassy exposures, too. Try calling the...

F-1 foreign student, false claim U.S citizen in 2016, got voluntary departure from the judge, want apply I-601 waiver.

I’m moving your question to Immigration since it presents no International Law questions.

Do I ?

With proper pkanning, you might save a bundle in taxes, but income in the US requires a US tax return. You should get tax advice on that kind of...

This presents an immigration question rather than a question of International Law, so I've moved it. But, what you really need to do is talk to the...

What can I do to get my grandmother a visa? I am a U.S. citizen and I want my grandmother to visit

It depends on the country, for many countries. It requires as little as showing up at the border with a valid passport from her country. For...

Start by consulting with an immigration lawyer. I’ve moved your question.

Jurisdiction is exclusively where the child lives. Get a custody lawyer there.

How requirements of licenses/certificates depend on the origin of the raw materials (the USA or China)?

I need more information than you are providing. What are the cosmetics? Are they FDA or FTC regulated? Are the raw materials controlled in the US...

Moving question to Immigration, since it presents no International Law questions.