This Link does not exist in your language, View in: English (en),
Or use Google Translate:  
বাংলা (bn) | Change Language (Change Language)

http://www.coraf.org/en/

As Africa's largest sub-regional research organization, CORAF works with 23 national agricultural research systems in 23 West and Central Africa countries to enhance prosperity and ensure a food security. Our research changes lives through improvements in agricultural production and increased incomes of millions of entrepreneurs and farmers.