Ministry of Agriculture in collaboration with United Nations Food and Agricultural Organisation brought out a rally in the city to mark the World Food Day on Friday.
This year's theme of the day is 'Achieving Food Security in Times of Crisis'.
Agriculture minister Matia Chowdhury inaugurated the day's events through the rally followed by a procession that started from Khamar Bari, participated among others by agriculturists, scientists, officials and members of the public.
Hundreds of school children joined the rally with colourful banners and festoons.
The programme was supported by Telefood, a FAO project for eradicating hunger, bdnews24.com and Channel i.
A seminar in observance of the day is also being held at Bangladesh Agricultural Research Council, attended by agricultural minister Matia Chowdhury.
Food and disaster management minister Mohammad Abdur Razzaque and minister of fisheries and livestock Abdul Latif Biswas are also participating in the seminar where FAO Bangladesh representative, AD Spijkers, is the guest of honour.
A children's painting competition is scheduled to be held at 3pm at Bangladesh Shishu Academy.
A three-day fair on 'Agriculture and Food' will also be inaugurated at the Krishibid Institution premise at 12pm.
A similar fair will be held at Depasai village in Somobhat union under Dhamrai upazila. Channel i will telecast the programme live.
In the afternoon, prime minister Sheikh Hasina will release postage stamps and envelops commemorating the day.
Moreover, the district and upazila administrations around the country are observing the day through holding discussion meetings and rallies.
President Zillur Rahman, on the eve of World Food Day on Friday, said proper measures must be taken to ensure food security in a changing climate.
In his message on Thursday, Rahman said, "I believe sufficient research and adequate technological innovation and usage can play an important role to produce more food."
Prime minister Sheikh Hasina said, "Agriculture is the most affected and vulnerable sector due to climate change. It is absolutely needed to ensure food security by fighting the situation."
"Bangladesh achieved self-dependency during the previous Awami League government in 1996-2001. But the succeeding government could not carry the success."
The incumbent government is pledged to guarantee food security for all being self-dependent again, the prime minister added.
In his message the UN chief Ban Ki-moon said, "Food and nutritional security are the foundations of a decent life, a sound education and, indeed, the achievement of all the Millennium Development Goals."
"Over the past two years, volatile food prices, the economic crisis, climate change and conflict have led to a dramatic and unacceptable rise in the number of people who cannot rely on getting the food they need to live, work and thrive.
"For the first time in history, more than one billion people are hungry," he added.
He said, "At this time of crisis, I encourage all nations to pursue coordinated and comprehensive strategies for agricultural development and effective social protection so that vulnerable people – women and children in particular – can get the food they need for nutritional security and well-being."
FAO representative in Bangladesh AD Spijkers said, "The achievement of the MDG 1–to eradicate extreme poverty and hunger–faces the risk of serious setbacks."
"It has occurred because of the economic crisis and panicky price hikes that have reduced incomes and access to food of the poor, more severely those in the poorest parts of the globe," he added.
Spijkers said, "The government has taken a strong resolve to return to self sufficiency in food by 2012 and to sustain it. The farmers of Bangladesh may rightfully aspire to attain that target. We believe they can, and they will."