Twitter has sued the Indian government to challenge some of its takedown orders, a source familiar with the matter revealed, further escalating the tension between the American social giant and India.

In its lawsuit, filed Tuesday in Karnataka High Court, Twitter alleges that New Delhi has abused its power by ordering it to remove several tweets from its platform.

The lawsuit follows a rough year and a half for Twitter in India, a key overseas market for the firm, where it has been asked to take down hundreds of accounts and tweets, many of which critics argue were objected because they denounced the Indian government’s policies and Prime Minister Narendra Modi.

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Twitter partially complied with the requests but sought to fight back against many challenges. Under India’s new IT rules, which went into effect last year, Twitter has little to no room left to individually challenge the takedown orders.

The tension between the two was apparent on May 24 last year, when Delhi police, controlled by India’s central government, visited two offices of Twitter — in the national capital state of Delhi and Gurgaon, in the neighboring state of Haryana — to seek more information about Twitter’s rationale to label one of the tweets by ruling partly BJP spokesperson as “manipulated media.”

Delhi police said it had received a complaint about the classification of the spokesperson’s tweet and visited the offices to serve Twitter India’s head a notice of the inquiry. In a statement, the police said Twitter India’s managing director’s replies on the subject had been “very ambiguous.”

Twitter at the time described the episode as “intimidation.”

The company has “concerns with regards to the use of intimidation tactics by the police in response to enforcement of our global Terms of Service, as well as with core elements of the new IT Rules,” it said.

Twitter India managing director resigned from the firm last year.

Twitter is not the first tech giant to sue the Indian government. WhatsApp sued New Delhi last year, challenging new regulations that could allow authorities to make people’s private messages “traceable,” and conduct mass surveillance.

It’s unclear if the new lawsuit will impact Twitter’s proposed acquisition by Elon Musk.