Kolkata
The wife of 77-year-old Bhattacharya, Mira Bhattacharya, also tested positive for the infection, following which she was admitted to a city hospital late Tuesday evening, they said.
"Swab samples of Buddhadeb Bhattacharya, his wife and their attendant were collected this morning and they tested positive for the disease," a source said on Tuesday.
A medical board has been formed for Mrs Bhattacharya at the hospital, he added.
"Doctors are seeing the former chief minister at home and they are constantly keeping a tab on his health condition," the source said.
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