What is the language used in Parliament?
As per Article 120 of the Constitution of India, business in Parliament is to be transacted in Hindi or in English, subject to the provisions of Article 348. However, the Chairman of the Council of States or the Speaker of the House of the People may permit any member who cannot adequately express himself in Hindi or English to address the House in his mother-tongue. Unless Parliament by law otherwise provides, after the expiration of fifteen years from the commencement of the Constitution, this article shall have effect as if the words 'or in English' were omitted.