The Maharaja Bir Bikram (MBB) Airport in Agartala, the second busiest airport in the Northeast will soon have a foreign exchange counter to provide currency exchange facility to passengers, a top airport official said on Friday. Around 30 per cent of passengers from Bangladesh use the MBB Airport to fly to many cities of India like Kolkata, Chennai, Bangalore and Mumbai for various purposes. The average footfall at the airport everyday is 4,200, the official said.