Who did not went parliament till now but he is prime minister?

As of October 2023, Rishi Sunak, the Prime Minister of the United Kingdom, had not served as a Member of Parliament (MP) prior to becoming Prime Minister. He was appointed to the role in October 2022, after previously serving as Chancellor of the Exchequer and holding other governmental positions. However, it's important to note that all Prime Ministers must be MPs at the time of taking office, so it's likely a misunderstanding in phrasing.