On October 7, 1958, just 11 years after Pakistan’s establishment, the country’s democratic system suffered a severe blow. President Major General Iskander Mirza abrogated the Constitution, dissolved parliament and imposed martial law. Political parties were banned, and numerous politicians from both East and West Pakistan were arrested. The prospect of governing the country through elected representatives was effectively brought to a halt.
General Muhammad Ayub Khan, the army chief, was Mirza’s partner in the takeover. In his memoirs, Ayub later indicated that the ambition to assume state power had been part of his political thinking since 1954. At the time, he was serving as both army chief and defence minister. Both Mirza and Ayub held the politicians who had led the movement for Pakistan’s creation in low regard.
Pakistan’s first general election was scheduled for early 1959. The election could have offered the country an opportunity to move towards parliamentary democracy, following a path similar to that of neighbouring India. But Mirza and Ayub were unwilling to relinquish control to political leaders.
Nearly nine years after Pakistan’s creation, the country had adopted a Constitution in 1956 through the efforts of political leaders, including Huseyn Shaheed Suhrawardy, Chaudhry Muhammad Ali and Ayub Khuhro. The Constitution established the foundations of a parliamentary system.
Mirza had succeeded Governor-General Ghulam Muhammad and became Pakistan’s president after the 1956 Constitution came into effect. Modelled on the British Westminster tradition, the Constitution provided for parliamentary government. There were hopes that constitutional continuity would strengthen the country’s democratic institutions.
Instead, on October 7, 1958, Mirza himself dismantled the constitutional framework that had enabled him to become president. His decision extinguished the prospect of democratic progress built through years of political negotiations, bargaining and compromise.
After declaring martial law, Mirza appointed Ayub Khan chief martial law administrator. The decision contained a cruel irony: in an attempt to consolidate his own position, Mirza brought a powerful army chief to the centre of state authority, only to be removed by him less than three weeks later.
Both men were adept at political manoeuvring. Ultimately, however, Mirza was defeated by Ayub’s military strength and political strategy.
Following the imposition of martial law, Mirza formed a cabinet that included Zulfikar Ali Bhutto, a young, foreign-educated lawyer from Larkana. A friend of Mirza’s son, Humayun Mirza, Bhutto was so pleased with his appointment that he wrote to the president expressing his gratitude. In the letter, he reportedly suggested that history might remember Mirza as a greater figure than Muhammad Ali Jinnah, Pakistan’s founder.
But the relationship between Mirza and Ayub deteriorated rapidly over the next 20 days. It became increasingly apparent that Ayub intended to establish sole authority. Meanwhile, army officers loyal to him were preparing to remove the president.
Senior officers close to Ayub, including Generals Wajid Ali Khan Burki, K. M. Sheikh, Musa and Yahya Khan, believed that two competing centres of power could not coexist. Plans to remove Mirza consequently moved forward.
On October 27, 1958, several military officers arrived at the president’s official residence in Karachi. Among them was Yahya Khan. Mirza was forced at gunpoint to resign. He was then flown to Quetta with his second wife, Nahid Mirza, and later sent into exile in London. He spent the remainder of his life abroad and never returned to Pakistan.
From October 27, Ayub Khan held unchallenged power. He assumed the presidency and the office of chief martial law administrator. His new cabinet included several military officers alongside civilian members. Bhutto, too, quickly shifted his allegiance to Ayub, an early indication of the role that political ambition and proximity to power would play in his subsequent career.
The judiciary and the doctrine of necessity
Pakistan’s judiciary also played a consequential role in legitimising Ayub’s takeover. The higher courts, under Chief Justice Muhammad Munir, applied the controversial doctrine of necessity, creating a legal justification for martial law and the seizure of power.
The decision established a precedent that would later be invoked to justify military intervention in Pakistan’s political affairs.
Munir had previously been at the centre of a constitutional controversy. In 1954, when Governor-General Ghulam Muhammad dissolved the Constituent Assembly, its speaker, Maulvi Tamizuddin Khan, challenged the decision in court. The court led by Munir dismissed his challenge, again invoking the doctrine of necessity.
Four years later, a similar judicial approach was used in the context of Ayub’s takeover. Munir compared Ayub’s assumption of power with the French and Russian revolutions. Yet a military seizure of power in Pakistan was fundamentally different from those historical revolutions. The court’s position helped strengthen military authority at the expense of constitutional government.
Ayub’s political experiment
Once in power, Ayub turned Pakistan into a laboratory for his political system. In 1959, his government introduced the Elective Bodies Disqualification Order, or EBDO, which barred a substantial number of politicians from electoral politics.
Weakening the political leadership while expanding the influence of the military and bureaucracy became a defining feature of his administration.
Ayub also elevated himself to the rank of field marshal without having demonstrated exceptional battlefield valour in a war. Pakistan remained under direct martial law for the first four years of his rule.
Martial law was lifted after a new Constitution was introduced in 1962, but the country did not return to a fully democratic system. Instead, the new Constitution institutionalised Ayub’s authority.
Universal adult suffrage was replaced by an electoral system based on an electoral college of only 80,000 members, known as Basic Democrats. These members voted for the president and other elected representatives.
The system provided for a National Assembly and separate provincial assemblies for East and West Pakistan, but their powers remained limited. The president retained the authority to appoint and dismiss provincial governors, leaving provincial administration heavily dependent on the central government.
In East Pakistan, the appointments and removals of figures such as General Azam Khan and Ghulam Faruque reflected the influence of central authority over provincial affairs.
Abdul Monem Khan, a relatively little-known Bengali lawyer and close supporter of Ayub, served as governor of East Pakistan from 1962 to 1969. In West Pakistan, Nawab of Kalabagh Malik Amir Mohammad Khan held the governorship for several years before retired army chief General Muhammad Musa succeeded him.
Ayub also sought to establish a civilian political identity by splitting the Pakistan Muslim League and creating the Convention Muslim League. Through the party, he built a political support base that extended his control beyond the military and bureaucracy into party politics.
During his decade in power, a civil-military structure emerged that weakened political parties and democratic institutions. The flattery of sections of the administration and media further encouraged a personalised style of rule. His memoir, Friends Not Masters, was reportedly ghostwritten.
Bhutto’s rise and the Tashkent controversy
Following the death of Mohammad Ali Bogra in 1963, Bhutto became Pakistan’s foreign minister. His rise within Ayub’s government was swift, making him one of the administration’s most influential figures.
In 1965, Pakistan went to war with India under Ayub’s leadership, with Bhutto playing a prominent role in foreign policy. Both countries faced significant pressure as the conflict ended. In January 1966, Ayub and Indian Prime Minister Lal Bahadur Shastri signed the Tashkent Declaration.
The agreement subsequently became a source of political controversy within Pakistan. Bhutto circulated claims about a purported secret clause in the declaration, fuelling public suspicion. He soon left the government and began campaigning against the very leader under whose patronage his political career had flourished.
Bhutto’s shift illustrated a recurring feature of Pakistan’s power-centred politics: loyalty to a powerful patron could give way to opposition when doing so offered a path to independent political influence.
East Pakistan and the rise of Bengali nationalism
During Ayub’s rule, Bengali nationalism grew increasingly powerful in East Pakistan. The legacy of the Language Movement, economic disparities, political exclusion and authoritarian central rule fuelled public resentment.
Sheikh Mujibur Rahman emerged as one of the leading political figures in East Pakistan, championing greater autonomy for the eastern wing.
Seeking to neutralise Mujib politically, Ayub’s government brought the Agartala Conspiracy Case against him and other defendants. The government intended to weaken his political standing and suppress the Bengali nationalist movement.
The strategy backfired. The case triggered widespread protests in East Pakistan, strengthened public support for Mujib and expanded the movement for autonomy. The proceedings intended to sideline him instead helped intensify opposition to Ayub and contributed to the conditions that would bring his rule to an end.
Ayub’s supporters portrayed him as Asia’s equivalent of Charles de Gaulle and promoted his tenure as the “Decade of Development”. Yet beneath the development narrative, dissatisfaction with democratic rights, political participation and accountability continued to grow in both wings of Pakistan.
In East Pakistan, complaints of economic and political inequality increasingly undermined the legitimacy of his government.
By early 1969, Ayub was facing a deep political crisis. He was forced to withdraw the Agartala case, and Sheikh Mujibur Rahman was invited to attend a round-table conference in Rawalpindi. Khan Abdul Wali Khan and Bhutto, who had earlier been arrested, were also released under pressure from the mounting political movement.
These developments exposed the growing weakness of a system sustained by military power and administrative control when confronted by mass mobilisation.
From Ayub to Yahya: Military rule continues
In March 1969, Ayub Khan was forced to relinquish power. But he did not preserve constitutional continuity in the transfer of authority.
Under the 1962 Constitution, the presidency was supposed to pass to National Assembly Speaker Abdul Jabbar Khan. Ayub instead handed power to army chief General Agha Muhammad Yahya Khan.
Yahya imposed martial law again soon after taking office. Pakistan’s political system thus remained under military rule rather than returning to constitutional democracy.
The succession of one military ruler by another demonstrated that the crisis was not simply a matter of individual leaders. It reflected the entrenched influence of the armed forces over state affairs and the weakness of democratic institutions.
Mirza spent the remainder of his life in exile in London. He reportedly worked as a restaurant manager and continued to hope that he would one day return to Pakistan. He died in London in November 1969, but Yahya Khan did not permit his burial in Pakistan. His family consequently buried him in Tehran.
Ayub died in April 1974, largely removed from the centre of public political life. The institutions he had weakened in order to retain power did not secure a lasting political legacy for him.
A legacy that continues to shape Pakistan
The military takeover of October 1958 marked the beginning of a lasting pattern in Pakistan’s political history. The country subsequently experienced further periods of military rule under General Yahya Khan, General Zia-ul-Haq and General Pervez Musharraf.
The rank of field marshal also provides a striking historical parallel. Ayub elevated himself to the rank in 1960, while General Asim Munir was promoted to field marshal in May 2025 following approval by the federal cabinet under Prime Minister Shehbaz Sharif.
Munir’s promotion, in a different political and constitutional context, has renewed attention to the relationship between military leadership and civilian authority in Pakistan.
The history of Mirza’s and Ayub’s rise to power raises a fundamental question: can concentrating state authority by weakening democratic institutions ensure long-term political stability?
The events of October 7, 1958, and their aftermath suggest that military power can consolidate control in the short term, but doing so can place constitutional government, democratic culture and citizens’ political rights under profound strain.
Pakistan’s subsequent history has repeatedly reflected the consequences of that unresolved tension between civilian democracy and military authority.
