Assistant Professor of Zoology at Rajshahi University Bidhan Chandra Das said: "This may be the reason of finding snakes in the localities of Rajshahi, Kushtia, Bhola and different parts of the country."
The local people have killed most of the snakes.
The zoologist told bdnews24.com: “April-July is the peak season of breeding for cobras. One snake can lay 30 to 35 eggs, and it takes 40 to 50 days for birth of baby cobras.”
“The snakes cannot dig the hole themselves, so they take shelter in rat holes. They stay there for five to seven days after their baby is born.”
He also said carbolic acid could not be a good repellent for snakes as many people might have thought.
Instead, he advised people to keep the homestead clean and fill up the holes, if there are any, so that snakes cannot use them as a sanctuary.