Dhaka, Aug 5 (Reporter) Sheikh Hasina's son, Sajeeb Wazed Joy, has ruled out any political comeback for his mother, saying she is "deeply disappointed" by the uprising against her leadership, despite her efforts to transform Bangladesh. In an interview with the BBC World Service's Newshour program, Joy, who served as an official adviser to the former prime minister until Monday, said Hasina had been contemplating resignation since Sunday and had left Bangladesh for her own safety at the insistence of her family. “(Hasina was) so disappointed that after all her hard work, for a minority to rise up against her,” he said. “She has turned Bangladesh around. When she took over power Bangladesh was considered a failing state. It was a poor country. Until today it was considered one of the rising tigers of Asia. She’s very disappointed,” Joy said, defending his mother’s record in office. He also rejected accusations that Hasina’s government had used excessive force in dealing with protests. “You’ve had policemen beaten to death – 13 just yesterday. So, what do you expect the police to do when mobs are beating people to death?” Faced with a one-point demand from the ‘Students against Discrimination’ – of resignation of the government, Sheikh Hasina resigned from the post of prime minister and left the country. She left in a military helicopter at around 2:30 pm today. She was accompanied by her sister Sheikh Rehana. The helicopter left for India. The Awami League president and her sister Sheikh Rehana landed in Hindon air base, on the outskirts of Delhi, in the evening. Sheikh Hasina has sought asylum in the United Kingdom, according to reports. She will fly to London through New Delhi after staying overnight in the Indian capital, the reports said. Hasina’s younger sister Rehana is a citizen of the United Kingdom. Her daughter Tulip Siddiq is a member of the British parliament for the Labour Party. Hasina’s daughter Saima Wazed Putul, the World Health Organization's regional director for South-East Asia, lives in Delhi. According to reports, India’s National Security Advisor Ajit Doval met the former Bangladeshi PM at Hindon air base. Bangladesh’s army chief Gen Waker-Uz-Zaman addressed the nation around 3:45pm, announcing Hasina’s resignation. Hasina has been in power for 15 and a half years as the leader of the Awami League. The student protests demanding quota reforms, which started over a month ago, morphed into an anti-government movement, resulting in widespread violence and the deaths of over 300 people. Hasina, president of the Awami League party, took oath as the prime minister for the fourth consecutive time on January 11 this year. Meanwhile, Bangladesh Nationalist Party chairperson Kaleda Zia has called on people to remain clam amid the ongoing nationwide chaos. Her son and BNP acting chairman Tarique Rahman also made a similar call. The European Union has called for an "orderly and peaceful transition towards a democratically elected government" in Bangladesh in "full respect of human rights". In a statement, Josep Borrell, the top diplomat of the 27-member bloc, said: "The European Union is closely monitoring the events unfolding in Bangladesh. "Following the address to the nation by Chief of Army Staff, General Waker-Uz-Zaman, the EU calls for calm and restraint…. We take note of the assurances given by General Waker-Uz-Zaman that the situation will be handled in a peaceful manner, and that all unlawful killings will be impartially investigated. Accountability for human rights violations is crucial. Those who have been arbitrarily detained should be released immediately," it said. The United Kingdom has expressed concern over the situation in Bangladesh and called for swift action necessary to ensure that democracy prevails. British Prime Minister Keir Starmer's office said this following the resignation of Sheikh Hasina The British PM's office said, "We are obviously deeply concerned by the violence we've seen in Bangladesh in recent weeks and that has obviously escalated in recent days. The very significant loss of life, including of students, children and law enforcement officers, is completely unacceptable. "The right to peaceful protest must be protected and never subject to violence and we call on the authorities to release all peaceful protesters and ensure due process is followed for those charged and prosecuted. "We hope that swift action is taken to ensure that democracy prevails and accelerate the process towards peace and security to people in Bangladesh." Meanwhile, after Sheikh Hasina, who has led Bangladesh since 2009, left the country, thousands of demonstrators advanced towards her official residence Ganobhabhan, in Dhaka. The demonstrators ransacked her residence, and helped themselves to furniture and other things in her residence. Widespread celebrations also broke out in the streets following her resignation. There were reports of police buildings set on fire while a statue of Sheikh Mujibur Rahman, Hasina's father and the founder of Bangladesh, was vandalised Army chief Gen Waker-Uz-Zaman made a televised address to the nation where he said that an interim government would be formed to govern Bangladesh and urged people to refrain from clashes and vandalism...////...