A police officer stops a group of Indians protesting against the arrest of Devyani Khobragade outside the US consulate in Hyderabad, India, Monday. Pic: AP.

NEW DELHI (AP) — An Indian diplomat said she faced repeated “handcuffing, stripping and cavity searches” following her arrest in New York City on visa fraud charges in a case that has infuriated the government in New Delhi.

In an email published in India media on Wednesday, Devyani Khobragade, India’s deputy consul general in New York, said she was treated like a common criminal despite her “incessant assertions of immunity.”

“I broke down many times as the indignities of repeated handcuffing, stripping and cavity searches, swabbing, in a holdup with common criminals and drug addicts were all being imposed upon me despite my incessant assertions of immunity,” she wrote.

An Indian official with direct knowledge of the case confirmed to The Associated Press that the email was authentic. The official spoke anonymously because of the sensitivity of the case. He said India is trying to get the woman returned home.

“India’s top demand right now is: Return our diplomat,” he said, adding that Khobragade would have to report to the precinct in New York every week to check in with the police.

Khobragade, 39, was arrested last week on charges that she submitted false documents to obtain a work visa for her Manhattan housekeeper. Prosecutors say Khobragade claimed she paid her Indian maid $4,500 per month but actually paid her less than $3 per hour.

Khobragade has pleaded not guilty and plans to challenge the arrest on grounds of diplomatic immunity, her lawyer said last week.

The case has escalated into a serious diplomatic issue. India has begun retaliating against American diplomats. The measures include revoking diplomat ID cards that brought certain privileges, demanding to know the salaries paid to Indian staff in U.S. Embassy households and withdrawing import licenses that allowed the commissary at the U.S. Embassy to import alcohol and food.

Police also removed the traffic barricades near the U.S. Embassy in New Delhi in retaliation for Khobragade’s treatment. The barriers were a safety measure but India said they clogged up traffic.

Marie Harf, U.S. State Department deputy spokeswoman, said federal authorities would work on the issue with India.

“We understand that this is a sensitive issue for many in India,” she said. “Accordingly, we are looking into the intake procedures surrounding this arrest to ensure that all appropriate procedures were followed and every opportunity for courtesy was extended.”

Harf also said as India’s deputy consul general, Khobragade does not have full diplomatic immunity, but rather consular immunity from the jurisdiction of U.S. courts only with respect to acts performed in the exercise of consular functions.

Khobragade’s case had received widespread attention in India. The case touches on a string of issues that strike deeply in India, where the fear of public humiliation resonates strongly and heavy-handed treatment by the police is normally reserved for the poor. For an educated, middle-class woman to face public arrest and a strip search is almost unimaginable, except in the most brutal crimes.