Consider the following statements about the term 'Sovereign' which is mentioned in  Preamble of Indian Constitution.

1.It implies that India is not a dominion of any other nation but an independent state. 

2.India is free to conduct its own internal and external affairs and there is no authority above it.

3.India can either acquire a foreign territory or cede a part of its territory in favour of a foreign state.

How many of the above statements are correct?