Al2O3 based Nanofluids are a relatively new type of fluids which involves a base fluid with nanosized particles suspended inside
them. These nanoparticles or metal oxide, increase conduction and convection coefficients, allowing for more heat dissipation out of
the coolant. While reviewing the literature related to this topic we witnessed that there has been many developments recently which
have made the nanofluids more stable to be used as coolant. Notably in past ten we have witnessed substantial growth in research
on nanofluids. In this review, papers listed in reputed national and international journals are only considered. The following study
initiate to be captivated on fusion, preparation, characterization and flexibility of diverse nanofluids to various industrial and
commercial applications.