SARS-CoV-2 (2019-nCoV) is a class of novel type of corona virus which is responsible for the current COVID-19 pandemic. The scientists at global front are strategically taking steps to mobilize it and to reduce the rate of spreading infection. The major steps which are involved in curbing the spread of infections are early detection and contract tracing. Currently there are two major methods for detection of corona virus which is nucleic acid based testing and serological testing. Contact tracing involves series of steps involved in the identification of people who were in contact with the infected victim & providing them with information for isolation and preventing disease from spreading further. The prestigious World Health Organization (WHO) has only recommended the qRT-PCR based diagnosis as the golden standard for the detection of corona virus. In the current review we have briefly described about the existing methods for the detection of COVID-19 disease and also a wide knowledge on the emerging techniques in this field which has been used for the detection of similar diseases.