Secretion of earthworms acts as plant growth stimulant. Vermi composting is an ultimate technology. For the improvement of soil fertility, also serves as indicator of soil status.

Such as level of contaminants of pollutants.

Agrochemicals heavy metals toxic substances and industrial affluent, human induced activities and forest degradation, this multi cellular invertebrate that serve as bio indicator to understand the physiochemical characteristic of their habitat.

Minimize the degradable organic matter and to use the same as bio resource for organic manure production generated at different levels into rich odourless free flowing compost to support sustainable agriculture.

Nearly 40 species of earthworms found in India, megascolex a polyhumic species probably the largest one. Castings compared to soil has 5 times N, 7 times the P, 3 times the exchangeable Mg, 11 times the potash, 1.5 times the Ca.