The US Transportation Department has finalised new rules requiring upfront disclosure of airline fees and mandates quick cash refunds for canceled flights, as well as for delayed baggage or inoperative services like onboard Wi-Fi. US President Joe Biden has signed a bill to ban TikTok, starting a nine-month countdown until the social media app's Chinese parent company ByteDance will be forced to sell it or have it be removed from US app stores. Ukraine for the first time has begun using long-range ballistic missiles provided secretly by the United States. Iran's President Ebrahim Raisi inaugurates a $514 million hydropower project in Sri Lanka, which was partly funded by Tehran. An Indian heart is beating in a young lady from Pakistan thanks to a life changing heart transplant from Chennai. For all the latest world news, analysis and updates, NDTV's new show The World 24X7 with Parmeshwar Bawa, is your one-stop shop.