India does not allow dual citizenship.
Yes, Thailand allows dual citizenship.
No, it's South Korea that does not allow dual citizenship.
Yes, it does.
. Once citizens immigrate to another country, they are usually not allowed to come back.
Israel allows dual citizenship for those who immigrate to Israel based on Law of Return (aliyah): you have to be Jewish to qualify to hold dual citizenship in Israel.
Liberia
Yes, both countries allow dual citizenship. However, if you live more than ten years outside Ireland, you will lose your Irish citizenship.
Yes only if that person is a American applying for dual citizenship in Brazil. A person from Brazil would be unable to keep citizenship in Brazil if they wanted US citizenship. because the US requires you to give up your citizenship to all other countries except Canada citizenship.
Yes, there is. Both countries allow dual nationality.
The rules of dual citizenship are quite easy to understand. Most countries neither deny or recognizes dual citizenship. However, if you are a dual citizen you must enter the country with the country's passport you own.
Yes, in the United Kingdom, dual citizenship is legal. The current law, the Nationality Act of 1948, does not disallow it.