During Lord Cornwallis's rule the Indian Civil Service (ICS) was introduced. The Indian Civil Service (ICS) for part of the 19th century officially known as the Imperial Civil Service, was the elite higher civil service of the British Empire in British India during British rule in the period between 1858 and 1947. Its members ruled more than 300 million people in British India. They were ultimately responsible for overseeing all government activity in the 250 districts that comprised British India. They were appointed under Section XXXII of the Government of India Act 1858, enacted by the Parliament of the United Kingdom. The ICS was headed by the Secretary of State for India, a member of the British cabinet.