One of the sources said that the appeal was filed on Monday.
In February, the Indian Competition Commission (CCI) imposed a fine of 1.36 billion rupees ($20.95 million) on Google, alleging that it abused the dominance of online online search and online search advertising.
Google is the core unit of American Alphabet, but did not immediately respond to Reuters' request for comment.
A CCI official stated that his judgment was 'robust' and that the competition watchdog planned to defend its ruling in NCLAT.
'Google was found to be obsessed with search bias, which would hurt competitors and users,' said CCI in its 190-page judgment.
The Indian regulator’s verdict is the latest antitrust setback in the world’s most popular search engine. Last year, the European Commission fined the company 2.4 billion euros (3 billion US dollars) to support its shopping services and downgrade its rivals. Google has filed a judgment on the verdict. appeal.
In India, the Commission found that Google, through its search design, placed its commercial flight search function prominently on the search results page, which is unfavorable for companies seeking market access.
The CCI ruling ended the investigation of complaints filed by the regulatory agency Bharat Matrimony and the Non-profit Organization Unity and Trust (CUTS) in 2012, which was first launched by regulators.