- The Constitution of India explicitly provides for the offices of Deputy Chairman of Rajya Sabha (Article 89), Speaker and Deputy Speaker of Lok Sabha (Article 93), and Speaker and Deputy Speaker of State Legislative Assembly (Article 178). - These offices have constitutional backing and their roles and election/removal procedures are outlined in the Constitution. - The office of Deputy Prime Minister, however, is not mentioned in the Constitution. It is a political position based on convenience or coalition politics, and the person holding this title is essentially a Minister in the Union Council of Ministers.