NEW DELHI: About 400 Covid-19 positive cases have been found whose epidemiological linkage can be traced to the Tablighi Jamaat cluster, the health ministry said on Thursday.Addressing the daily briefing, health ministry joint secretary Lav Agrawal said 328 new cases of the novel coronavirus and 12 new deaths have been reported since Wednesday.He said 1,965 coronavirus cases have been reported so far in India."Yesterday, the cabinet secretary through video conferencing with chief secretaries and DGPs asked them to initiate intensive contact tracing of Tablighi Jamaat participants and implement containment measures on war-footing,” Agrawal said.After contact tracing and sampling, about 400 positive cases have been identified whose epidemiological linkage can be traced to the Tablighi Jamaat cluster, he said.This includes 173 from Tamil Nadu, 11 from Rajasthan, nine from Andaman and Nicobar Islands, 47 from Delhi, two from Puducherry , 22 from Jammu and Kashmir, 33 from Telengana , 67 from Andhra Pradesh and 16 from Assam.These numbers are increasing as more samples are being tested, Agrawal said.Regarding the Dharavi Covid-19 positive case, he said the building there has been sealed and sample collection and contact tracing is going on as per protocol.The joint secretary said that the prime minister has urged states to manage the coronavirus crisis at the district level.Orders have been placed for over 1.5 cr personal protective equipment (PPEs) and supply has already started, he said, adding that domestic manufacturing of N-95 masks has been stepped up.The official also informed that there have been limited cases of doctors on duty testing Covid-19 positive and asserted that it is important to follow infection prevention control at hospitals.