Explanation:

The first statement is incorrect. Gaganyaan is not a lunar mission; it is India's first indigenous manned space mission. It aims to send Indian astronauts into space in a spacecraft orbiting the Earth, not to the moon.

The second statement is correct. The Gaganyaan mission will indeed carry out a series of experiments, and studying the effects of micro-gravity is likely to be among them. Such experiments are a common aspect of manned space missions.

The third statement is incorrect . If successful, India would indeed join an exclusive group of nations that have achieved sending humans to space. However, as of my last update, only three entities have accomplished this independently: the Soviet Union/Russia, the United States, and China. The European Space Agency (ESA) has not independently sent astronauts into space; European astronauts have flown aboard US and Russian spacecraft.