The personal security guard of Debanjan Deb, the prime accused in the fake vaccination camp case, was arrested late on Thursday from his Sonarpur home.
Police said Arvind Baidya, a retired paramilitary jawan, was privy to Deb’s crimes and was instrumental in organising a fake vaccination camp in Sonarpur.
Baidya’s family members said he was being framed.
Baidya has been remanded in police custody till July 5.
On Thursday, Baidya's name featured in a political debate when TMC MP Sukhendu Sekhar Roy showed purported photographs of him at a function in Raj Bhavan in the presence of governor Jagdeep Dhankhar.
The BJP said it was an attempt to malign the governor.