Censorship in India has taken various forms throughout its history. Although the Constitution of India de jure guarantees freedom of expression, de facto there are various certain restrictions on content, with an official view towards "maintaining communal and religious harmony", given the history of communal tension in the nation. According to the Information Technology Rules 2011, objectionable content includes anything that "threatens the unity, integrity, defence, security or sovereignty of India, friendly relations with foreign states or public order".