Onion prices fell further by about 10 rupees in the retail markets of major metros to 40 to 50 rupees per kg today even as Finance Minister Pranab Mukherjee exuded confidence that the situation will be in control soon. Talking to reporters in Kolkata, he said, export of onions has been banned and the import duty has been made zero, besides, some imported onions are reaching the market. He said, the government is taking all possible steps and things will be in control soon. Prices of onions had surged due to crop damage in the major producing region of Maharashtra, besides hoardin and touched a peak of 70 to 85 rupees per kg earlier this week. In order to maintain adequate supply of onions in the city, the Delhi government kept Azadpur market (Asia's biggestwholesale fruits and vegetables market) open even on Sunday to facilitate the sale and purchase of onion.