Under the bilateral ‘air bubble’ agreement signed between India and Bangladesh, Tata-SIA joint venture airline Vistara operated its first flight on Delhi-Dhaka route on November 5. The airline will be operating special, non-stop flights twice a week i.e. Thursdays and Sundays between the two cities. Meanwhile, the full-service carrier also announced new flights to Doha from Delhi that will start from November 19.