A mobile Covid-19 diagnostic facility that can travel to areas difficult to access for conducting tests was inspected by Tamil Nadu Minister Ma Subramanian at the Indian Institute of Technology, Madras here on Saturday. "The unit 'Parakh' has been housed in a van which can be deployed in remote locations for testing samples to detect Covid-19 infection. The facility would be useful to detect outbreak in rural areas where testing facilities immediately not available," IIT Madras said.