Analysis of information sources in references of the Wikipedia article "Yahya Khan" in English language version.
The Pakistani government (the Yahya regime) was primarily responsible for the genocide. Not only did it prevent the Awami League and Rahman from forming the federal government, but it opted for a military solution to a constitutional crisis. In doing so, it decided to unleash a brutal military operation in order to terrorize the Bengalis. Yahya's decision to put General Tikka Khan (who had earned the name of "Butcher of Baluchistan" for his earlier brutal suppression of Baluchi nationals in the 1960s) in charge of the military operation in Bangladesh was an overt signal of the regime's intention to launch a genocide.
Pashtuns (the community from which hailed the country's first four commanders-in-chief from Ayub Khan to Yahya Khan and Gul Hassan Khan, with the exception of Mohammad Musa)
A burly, double chinned, bushy-browed slothful Yahya Khan was, like Ayub Khan, an ethnic Pashtun.
The military junta—led by General Yahya Khan, who had assumed power in 1969—was reluctant to accept the election results, and Khan postponed convening Pakistan's National Assembly... On March 25, 1971, the Pakistani Army launched a full-scale campaign, known as Operation Searchlight. After arresting Mujib and abducting him to West Pakistan and banning his party, it set about massacring his supporters, with American weapons. Firing squads spread out across East Pakistan, sometimes assisted by local collaborators from Islamist groups that had been humiliated in the elections. In the countryside, where the armed resistance was strongest, the Pakistani military burned and strafed villages, killing thousands and turning many more into refugees. Hindus, who composed more than ten per cent of the population, were targeted, their un-Muslimness ascertained by a quick inspection underneath their lungis. Tens of thousands of women were raped in a campaign of terror.
Yahya Khan had a life-long affair with drinking, to a point where he invariably got raucously tipsy. His affairs with women were legion.
The military junta—led by General Yahya Khan, who had assumed power in 1969—was reluctant to accept the election results, and Khan postponed convening Pakistan's National Assembly... On March 25, 1971, the Pakistani Army launched a full-scale campaign, known as Operation Searchlight. After arresting Mujib and abducting him to West Pakistan and banning his party, it set about massacring his supporters, with American weapons. Firing squads spread out across East Pakistan, sometimes assisted by local collaborators from Islamist groups that had been humiliated in the elections. In the countryside, where the armed resistance was strongest, the Pakistani military burned and strafed villages, killing thousands and turning many more into refugees. Hindus, who composed more than ten per cent of the population, were targeted, their un-Muslimness ascertained by a quick inspection underneath their lungis. Tens of thousands of women were raped in a campaign of terror.