Fixation of atmospheric nitrogen in the form of ammonia at an ambient condition in a green chemical pathway is one of the biggest challenges for chemical researchers. This is extremely important for the advancement of fertilizer industries and chemical technology. In nature, nitrogen fixation occurs primarily as ammonia by symbiotic and non-symbiotic microorganisms. Plants use this source of nitrogen for their growth. Thus, ammonia (N H 3 ) is a requisite chemical for fertilizer industries. It is also essential for dyes industries, explosive and resin production. For ammonia synthesis, industries still depend on the celebrated Haber-Bosch process which requires high temperature and pressure. Thus, modification of reaction conditions towards the ambient temperature and pressure will lead to a hugely energetic and economic profit for the respective industries and the society. In this respect, artificial nitrogen fixation is extremely important and considered a grand scientific problem as it will ease the ammonia synthesis from nitrogen and hydrogen.