What is the difference between Diplomat & Ambassadors?
Both diplomats and Ambassador of nation represent that nation in a foreign country. But diplomats may be many (more than one), but an Ambassador of a country in another country is only one.
An ambassador is a diplomat, but all the diplomats are not ambassadors. For example, a team of diplomats consisting of Arun Kumar Singh, NSA Ajit Doval, some other IFS officers go to White House on the behalf of Indian government. All these are representing India in USA. Therefore, all these are diplomats. But, only one i.e. Arun Kumar Singh is the Ambassador of India to USA, because he has been given that designation by the government of India. An ambassador is a permanent representative of a country in another country and lives in his country’s embassy in that other country. Means, an ambassador represents his country till a new ambassador is appointed in his place. It means, he is definitely a diplomat for that period. Every country has different ambassadors to different countries. e.g. India’s ambassador to US is Mr. Arun Kumar Singh, to China is Mr. Ashok Kantha. So, Mr. Ashok Kumar Singh is essentially a diplomat till he is ambassador. But say, if some IRS officers go to US on a tourist visa, they will not be called diplomats then and will not have diplomatic immunity.
So, diplomats are persons appointed by the government of a country to represent that country in another country. Out of them, one is a permanent representative and he is called Ambassador, while others are temporary representatives (for a particular visit).