George Washington
At the end of his second term, Washington retired for personal and political reasons, fatigued and disgusted with personal attacks, and to assure a truly contested presidential election could be held. He did not feel bound to a two-term limit, but his retirement ultimately set precedent. The two-term limit to the presidency was formalized with the 1951 adoption of the Twenty-second Amendment to the United States Constitution. Washington is often credited with setting the principal of a two-term presidency, but it was Thomas Jefferson who first refused to run for a third term on political grounds.
President's rule
In practice, president's rule has been imposed under different circumstances:If approved by both houses, President's Rule can continue for 6 months. It can be extended for a maximum of 3 years with the approval of the Parliament done every 6 months. If the Lok Sabha is dissolved during this time, the rule is valid for 30 days from the first sitting of the Lok Sabha provided that this continuance has already been approved by Rajya Sabha. The 44th Amendment Act of 1978 introduced a new provision to put a restraint on the power of the Parliament to extend President's rule in a state. According to this provision, President's rule can only be extended over a year every 6 months under following conditions:
President's rule can be revoked at any time by the President and does not need the Parliament's approval.