Explanation

 Z A Bhutto was The First Civilian Chief Martial Law Administrator on 20 December 1971

Yahya Khan resigned on 20 December and transferred power to Bhutto,

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Additional information 

• Iskandar Ali Mirza who was the first president of Pakistan abrogated the constitution of 1956 on 07-October-1958.

  Ø  Ayoub Khan was made chief martial law after this abrogation.

  Ø  Feroz Khan Noun was the prime minister at the time of the first Martial Law in Pakistan.

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  List of Martial Laws Held in Pakistan from 1947 to 2022

  Sr#	Martial Law Number	Date of Martial Law	Martial Law Implemented by
  1	First Martial Law	7th October 1958	Iskandar Mirza
  2	2nd Martial Law	25th March 1969	General Yahya Khan
  3	3rd Martial Law	25th July 1977	General Zia ul Haq
  4	4th Martial Law	12th October 1999	General Pervaiz Musharraf