India, April 30 -- The United States has one of the harshest immigration laws in the world. Things have become more stringent after the Trump administration has conducted crackdowns on hundreds of undocumented immigrants living in the US.

Only last month, ICE agents deported hundreds of illegal immigrants to El Salvador, with regular federal task force operations ongoing. Currently, immigration to the US remains one of the biggest challenges for nationals of some countries.

10 countries have been identified in a recently released study carried out by Brooks Law Firm. The study takes into account the immigration difficulties faced by countries while immigrating to the United States. Key metrics of the study include B visa refusal rate, p...