PURNEA, Jan. 31 -- For decades, the Kosi River - infamously known as the "Sorrow of Bihar"- was the harbinger of woes that would engulf the region after every rain-infested flood. Now, the fortunes are about to take a turn for the better as the makhana -- the staple and stable yield of local farmers -- is set to bring prosperity following the government's special focus to promote the business of makhana which is known as superfood.

What has actually transformed sorrow into joy and prosperity - is a sustained research by agriculture scientists and researchers who helped farming communities utilise waterlogged areas by growing makhana (euryale ferox or fox nuts).

The research is all set to script story of progress and prosperity along Kos...