Google has filed a legal challenge in India’s Supreme Court to block a ruling by the country’s antitrust watchdog that will force the US company to change how it markets its Android platform, court records showed on Saturday.

The Competition Commission of India (CCI) in October fined the Alphabet Inc unit $161 million for exploiting its dominant position in the market for Android, which powers 97% of smartphones in India and is a key growth region for the U.S. giant.

The challenge comes after Google suffered a setback on Wednesday when an appeals tribunal rejected its request to block the antitrust ruling. The company argued that implementation of the CCI’s directives will hurt its long-standing business model and consumer interests.

Supreme Court records show Google filed a challenge against the tribunal ruling on Saturday. A hearing date is yet to be fixed.

Reuters was first to report on Thursday about Google’s planned strategy.

Sources earlier this week told Reuters that Google considers a legal challenge as its last hope of blocking the ruling of the CCI, whose directives forcing the company to change its business model kick in on Jan. 19.

Google’s Supreme Court filing seeks to put the CCI decison on hold while its appeal is heard, said one person familiar with the matter on Saturday.

Google has been concerned about the Indian decision as the remedies ordered are seen as more sweeping than the European Commission’s landmark 2018 ruling for imposing unlawful restrictions on Android mobile device makers. Google has challenged the record $4.3 billion fine in that case.