(2) One year Explanation: President's rule is enabled by Article 356 of the Constitution of India, which gives authority to impose central rule if there has been failure of the constitutional machinery in any state of India. It is imposed for six months and can last for a maximum period of three years with repeated parliamentary approval every six months. But 42nd amendment act of 1976 extended the one time duration of state emergency from 6 months to 1 year. Therefore from now on after every 1 year Parliament needs to approve the same. If the emergency has to be extended for more than three years, it can be done by a constitutional amendment, as has happened in Punjab and Jammu and Kashmir.