According to the officials, the customers who visited the bank have also been advised to voluntarily appear for coronavirus tests.
Earlier, a senior official of the branch who was suffering from other complications, had succumbed to the contagion. The positive cases came to light after a mass medical screening camp was held at the bank recently, the officials said.
The bank is frequented by customers including pensioners and loan applicants. Senior bank officials said the disinfection process had been completed today and indicated the bank might resume operations from Monday.
Corporation health officials were in touch with the customers who visited the bank recently.
Tamil Nadu, with the highest virus caseloads in the country after Maharashtra, has reported an overall 2,06,737 positive cases of the virus as of Saturday.