What was the reason of "Boston Tea" action?

The Boston Tea action (Boston tea party) occurred because a company called the British East India Company was allowed to be the only company selling tea in the American colonies through the passing of the Tea Act by parliament. This Tea Act was the last straw in a series of unpopular taxes and policies imposed by Britain on her American colonies.

A group of Americans calling themselves the Sons Of Liberty protested against the Tea Act by boarding 3 ships of the British East India Company at Boston harbor and threw over board 92, 000 pounds of tea.

The people living in America didn't like the taxes so they didn't like the tea. They decided to stop them by dumping the crates of tea in the water