An autorickshaw driver from Bethuadahari voluntarily got in touch with the Nadia administration on Monday and said he had ferried four of the five Covid-19 patients from the district from Bethuadahari railway station to Tehatta’s Barnia on March 20, officials said.

The district administration has put him under home quarantine after a medical examination. Officials of the Covid-19 management cell in Tehatta said they did not find any symptoms in the auto driver.

The driver was the second person to voluntarily come forward and admit contact with the Covid-19 positive persons. On Sunday, a woman CISF constable had got in touch with the administration, saying she might have shared the same compartment of a Lalgola Passenger train with four of the five patients on March 20.

“I came to know that the district administration was looking for the auto driver who ferried four of the five persons to Barnia from Bethuadahari. Realising that I had ferried the four, I contacted officials in Tehatta. It is an issue that concerns the safety of all,” the auto driver said.

Two women and three children from Tehatta, including a nine-month-old, tested positive for the novel coronavirus and were admitted to the Infectious Diseases and Beleghata General Hospital. The women and two of the children, all related, had reached Sealdah from Delhi by the Rajdhani Express on March 20. They then boarded the Lalgola Passenger and got off at Bethuadahari.

The fifth patient, an 11-year-old boy, is a resident of Tehatta and a relative of the four. Three persons from Nadia who came in close contact with the five are admitted to a government hospital in south Calcutta. The Nadia district administration has also identified 67 others who came in contact with any of the five.

All 67 have been asked to be in home quarantine. “A written undertaking that they will not violate the order has been taken from them. Also, posters have been pasted outside their homes asking people to avoid visiting them during the two-week quarantine period,” an official in the district administration said.

East Burdwan district magistrate Vijay Bharti said doctors had examined a family member of the CISF constable — she is from Katwa in the district — and put him in home quarantine.

The army’s Eastern Command on Monday said it was identifying those who had come in contact with the anaesthetist who has tested positive for the virus, when he was in Delhi between March 12 and 17.

Sources in the health department said they had sought details of the flight that the doctor had taken to Calcutta from Delhi.