The fact that the world's population is drastically increasing at a faster rate having projections to reach 9 billion by 2050, which is why it is important for farmers and farming communities around the world to double the production of food in a sustainable manner in order to meet global food demand. The soil is a dynamic natural entity having complexity with broad range of microbial population; however the soil's natural fertility gradually decreases as a result of judicious over-use of chemical fertilizers, insecticides, weedicides and pesticides at unbalanced rate. This has resulted in a global food crisis due to declined production which needs to be boosted in a sustainable thereof introducing the idea of biofertilizers. Biofertilizer is a component part of integrated nutrient management. Potential biofertilizers have important functions to play in soil fertility, productivity and its sustainability. The major biofertilizers used are Rhizobium, Arbuscular Mycorrhizal Fungi and Azolla. These are organic substances which use different strains of specific micro-organisms in order to increase soil fertility and boost agricultural productivity in a sustainable manner for the future.