Another health official said three of these patients hail from Ranchi's Hindpiri locality, while one is from Garhwa district.
According to Director of Rajendra Institute of Medical Sciences D K Singh, out of the total 270 samples tested for COVID-19 during the day, four were positive.
Ranchi district accounts for the maximum number of coronavirus cases in Jharkhand at 28, followed by 10 in Bokaro, officials said.
So far, two people have died in the state due to the contagion. PVR RBT DIVDIV