Botany I rank with the most valuable sciences, whether we consider its subjects as furnishing the principal subsistence of life to man and beast, delicious varieties for our tables, refreshments from our orchards, the adornments of our flower borders, shade and perfume of our groves, materials for our buildings, or medicaments for our bodies. To the gentleman it is certainly more interesting than Mineralogy...and is more at hand for his amusement; and to a country family it constitutes a great portion of their social entertainment. No country gentleman should be without what amuses every step...

Like many other issues the third world countries also facing a serious problem of unavailability of quality food. The issue can be addressed by finding out the cost effective food sources that can be achieved from minimum inputs. The present work is important in the sense it is an effort to find out the effect of varying stocking density of Cirrhinus mrigala and Cyprinus carpio on pond nutrient dynamics in polyculture system.