In the present work an attempt has been made to study physico-chemical characteristics and plankton abundance, growth of Indian and exotic major carps (5 species), species combination and stocking densities, gross and net fish production in a fish pond situated at Siswan block of district Siwan known as Mahendra Nath Pokhara besides studying the economics of fish farming in a rural pond of Siwan district. The details have been discussed in the paper.