The middle-aged married woman, a resident of Siolim village, has lodged a formal complaint against Mr Rodrigues with the Anjuna Police this evening.
Police have registered an FIR against Mr Rodrigues under sections 354 (A) (iv)(sexual harassment), 509 (words or gesture to insult modesty of a woman), and 500 (punishment for defamation), an official said.
The woman alleged that Mr Rodrigues on November 4 circulated a video on social media purportedly showing the minister with the woman.
On November 5, Mr Rodrigues circulated a message that he had sought an appointment with Goa Governor Mridula Sinha to update her on the alleged sex scandal, according to the complaint.
"The complainant said Rodrigues circulated her picture on whatsapp linking her to the alleged sex scandal on November 7," the official said quoting the complaint.
The woman said she was not able to move out of her house after she came to know about the post. She alleged that her image was tarnished by the post which has disturbed her marital life.
The woman claimed that she and her husband confronted Mr Rodrigues at his office and that he admitted that he had circulated the said post without any basis and facts.
When contacted, the minister Vinod Paliencar, who represents Siolim seat, lashed out at Rodrigues.
"It is wrong if any woman's name is being tarnished by certain individual at the behest of someone. All my voters in Siolim are my people. I meet hundreds of people everyday," he said.
Mr Paliencar said the incident shows the "culture and upbringing of the social activist who also has a daughter". Mr Rodrigues could not be contacted for his reaction.