Kalonunia is one of the much known aromatic rice varieties of North Bengal. Generally regarded as the ‘Prince of rice’, Kalonunia is said to have been a favourite of the Maharajah of Coochbehar, Nripendra Narayan. The rice is also said to be used in offerings at the temple of Lord Madan Mohan. It is also noted for its black husk, from where it gets its name.