Indian government has blocked bank accounts of ByteDance in the country for alleged tax evasion and the company has asked a Mumbai court to quash the directive which it fears will hit its operations hard, two sources with direct knowledge told Reuters.

ByteDance in January cut its India workforce after New Delhi decided to retain a ban on its popular video app TikTok, first prohibited last year following a border clash between India and China. China has repeatedly criticized India’s move and said it suspected it was against WTO rules.

ByteDance still has around 1,300 employees in India, most of whom service its overseas operations, including work on activities such as content moderation.

In mid-March, two of ByteDance India’s bank accounts in Citibank and HSBC were ordered blocked by authorities for alleged evasion of certain taxes in online advertising dealings between the ByteDance unit in India and its parent entity in Singapore, TikTok Pte Ltd, a Reuters report two unnamed as saying.

Other than the two accounts, the authorities also directed Citibank and HSBC to not allow ByteDance India to withdraw funds from any other bank accounts linked to its tax identification number, the first source said.

In a court filing, which is due to be heard soon at a High Court in the financial capital Mumbai, ByteDance India has argued that while it had only about $10 million in its accounts, the blocking decision was an abuse of the legal process and will make it hard for it to pay salaries and taxes, the source added.

Both the sources declined to be identified, as the details of the bank freeze or company’s court challenge were not public, Reuters said.

ByteDance India, as well as HSBC, Citibank and India’s finance ministry, did not immediately respond to a request for comment.

The TikTok app ban — part of dozens of other Chinese apps that were banned last year — was in interests of national security and sovereignty India had said. The move was widely seen as India’s broader pushback against Chinese businesses after clashes at a disputed Himalayan border site (in Ladakh area) left 20 Indian soldiers dead.

The directive to freeze ByteDance India’s bank accounts came after tax authorities last year inspected documents at the company’s office, scrutinized documents and questioned some executives in relation to the advertising and other transactions with its parent entity, the first source said.

In its court document, which the source was privy to, ByteDance India has argued that its entire business had come to a standstill because of the bank freeze and that such an action violates its rights “to carry free trade and business”.

TikTok had come under scrutiny around the world. During former U.S. president Donald Trump’s administration, which alleged that the app posed national security concerns as personal data of U.S. users could be obtained by China’s government — an allegation the company denied.

U.S. President Joe Biden’s new administration has paused a government lawsuit that could have resulted in a de facto ban on TikTok’s use in the United States.