Though, International Law does not specify any manner of recognition of government but as the states practice, there are two manners;
A. EXPRESS RECOGNITION
Here, a state conveys the recognition of a new entity or government through formal announcement i.e. a public statement or a diplomatic note. For example, the treaty between UK & Burma (1947) provided that government of UK recognized ‘the Republic of Burma as fully independent sovereign state.’
B. IMPLIED RECOGNITION
This manner points out the ‘results from any act between the states which implies the intention of recognizing the new state.’ But Signing of a treaty or bringing a claim against the unrecognized state will not be implied recognition. In fact, the commencement of diplomatic relations and sending the representatives to attend ceremonial functions can be an implied manner of recognition. For instance, South Africa from 1965 to 1980 maintained diplomatic relations with Rhodesia, the rebellious colony of UK, and sent police there to assist Rhodesian security forces. This all was taken as implied recognition.
It is also noted that signing if multilateral treaties or signing the charter of UN does not imply recognition of all the signatory states.