The virus, “Observe the virus; think how small, its arsenal, and yet how loud it call; It took my cell, now takes your cell, when it leaves will take our genes as well Genes that are master keys to growth, that turn it on, or turn it off or both; Should it return to me or you, it will own the skeleton keys to do; A number on our tumblers; stage a coup.” Viruses are a unique group of infectious agents whose distinctiveness resides in their simple, acellular organization and pattern of reproduction. Despite their simplicity in comparison with cellular organization, viruses are extremely important and deserving of close attention. The study of viruses has contributed significantly to the discipline of molecular biology-virology. This project focuses on the broader aspect of virology: the general properties & deals with characterization of virus, the ways in which viruses are cultured and studied. My project deals with “PCR based molecular identification of a begomovirus associated with yellow vein net disease of Amaranths”.