National Emergency ie. NE(352) Grounds of Deceleration 1) In case of attack from out side External emergency 2)External aggression 3)Armed rebellion(added in 44th amendment in 1978 instead of internal disturbance) internal emergency Approval 352 declared by President has effects for only 1 month (added in 44th amendment act which was earlier 2 month) So it must pe passed by both the houses within this period of one month by special majority(ie. Majority of total members and not less then 2/3rd present and voting) before 44th ammendment it was simple majority one approved by the house, it has its effect for 6 month, which can be extende to an indefinit time by repeating 6 month approval rule if lok sabha fails to approve the proclamation of emergency due to its dissolution, and the same proclamation has been passed by upper house then NE will sustain till 30 days after the 1st seating of H