Jharkhand Chief Minister Hemant Soren and his wife Kalpana tested negative for COVID-19 on Saturday, an official statement said.
Earlier in the day, health workers had collected swab samples of Soren and his wife, and some officials working in the Chief Minister's Office (CMO).
The chief minister has been in home quarantine since July 8 after he came in contact with Drinking and Sanitation Minister Mithilesh Thakur and JMM MLA Mathura Mahato, who have been found infected with COVID-19.
Health workers took swab samples of the chief minister, his wife Kalpana Soren, Press Adviser Abhishek Prasad, senior personal secretary Sunil Srivastav and other officials and police officers working at the CMO, the statement said.
All the swab samples of the chief minister, his wife and other officials tested negative for COVID-19, the CMO said in the statement.
Thakur and Mahato are admitted to the COVID-19 ward at Rajendra Institute of Medical Sciences (RIMS).