Liquid Based Biological Fertiliser is prepared using an accurate formulation containing azotobacter chroococcum. The Biological Fertiliser fixes atmospheric nitrogen in the range of 20-40 Kg N/ha in the soil and is tolerant to low pH and high salt. The Biological Fertiliser produces some anti-fungal substance which prohibits pathogenic fungi like aspergillus, fusarium, alternaria etc. Liquid Based Biological Fertiliser can be used on various crops like sugarcane, maize, wheat, rice, barley, all vegetable and fruit etc.