Watch: Imran Khan takes oath as Pakistan's 22nd Prime Minister in Islamabad

Cricketer-turned-politician and PTI chief Imran Khan on Saturday took oath as the 22nd prime minister of Pakistan, a day after he defeated Shahbaz Sharif in a one-sided contest in the National Assembly.

Imran Khan was administered his oath by President Mamnoon Hussain in Islamabad.

The ceremony commenced with Pakistan'snational anthem, followed by recitation of verses from Quran.

Khan, who famously captained the Pakistan cricket team to World Cup glory in 1992, has also invited some of his former teammates to witness his formal ascension to the top ministerial job in the country.

The ceremony was attended by former cricketer and Congress leader Navjot Singh Sidhu, who arrived in Pakistan yesterday.

In the July 25 general elections, the PTI had emerged as the single largest party with 116 seats. The number increased to 158 in the NA after the Election Commission of Pakistan (ECP) issued notifications of the successful candidates on the reserved seats for women and the minority community on August 11.

Earlier, after being elected as the Prime Minister, Khan pledged to bring a change which according to him "the country was awaiting for last 70 years". He assured to identify the people accountable for "looting the country", as per the report.

"Those who stole this nation's money and stashed it abroad, I will bring them all to accountability. We will together debate and think on how to generate our own revenues so that we never have to be dependent on another country," he said while thanking the youth of Pakistan for supporting him.

Recounting his journey of 22 years from a cricketer to a politician, Khan asserted that no "military dictator nurtured" him and he has reached this height with his own "struggle and accord."

The ceremony was also graced by his wife Bushra Maneka.