A Biman Bangladesh Airlines flight bound for Nepal's Kathmandu has been forced to turn back mid-journey after being denied permission to land at Tribhuvan International Airport, where all operations have been suspended amid violent protests. With flights in and out of Kathmandu halted, air connectivity between Dhaka and the Nepalese capital have been snapped. That means Biman’s outbound BG 371 and return BG 372 flights, as well as a scheduled service by Himalaya Airlines, are grounded, according to airport officials. The youth-led protests, sparked by a ban on social media, entered a second day in Kathmandu on Tuesday, culminating in the resignation of Nepal's Prime Minister KP Sharma Oli. The ongoing turmoil has left many Bangladeshis stranded in the city....