Bharara, who was born in India but moved with his family to New Jersey, defended his case.
"One wonders whether any government would not take action regarding false documents being submitted to it in order to bring immigrants into the country," he said in the statement. "And one wonders why there is so much outrage about the alleged treatment of the Indian national accused of perpetrating these acts, but precious little outrage about the alleged treatment of the Indian victim and her spouse?"
Khobragade, who was India's deputy consul general in New York, would face a maximum sentence of 10 years for visa fraud and five years for making a false declaration if convicted.
She has said she has full diplomatic immunity. The department of state disputes that, saying hers is more limited to acts performed in the exercise of consular functions. Her work status late Wednesday was unclear.
Indian consulate spokesman Venkatasamy Perumal said Khobragade was transferred on Tuesday to India's UN mission, but he declined to comment further, and requests for comment to the UN mission's first secretary were not immediately returned.
Department of state deputy spokeswoman Marie Harf said that when such a transfer request is made to the United Nations, the UN secretariat would inform the department of state. It then would have to be reviewed by appropriate authorities in both places.