The new ICMR guidelines also said asymptomatic direct and high-risk contacts of a confirmed case should be tested once between day 5 and day 14 of coming in his/her contact.
The apex body for biomedical research revised its strategy in view of a spurt in coronavirus cases in the country this week.
The new strategy aims to contain the spread of infection more effectively and to provide reliable diagnosis to all individuals meeting the inclusion criteria of COVID-19 testing.
Meanwhile, the coronavirus cases rose to 258 today in India with fresh cases being reported from various parts of the country.
India has so far witnessed cases of COVID-19 mostly related to travel and local transmission from imported cases. Community transmission of the disease has not been documented till now.
Advisory for testing are being reviewed and d periodically.