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The lawsuit, described to Reuters by people familiar with it, asks the Delhi High Court to declare that one of the new rules is a violation of privacy rights in India's constitution since it requires social media companies to identify the "first originator of information" when authorities demand it.
While the law requires WhatsApp to unmask only people credibly accused of wrongdoing, the company says it cannot do that alone in practice. Because messages are end-to-end encrypted, to comply with the law WhatsApp says it would have break encryption for receivers, as well as "originators", of messages.
Tensions grew after a police visit to Twitter's offices earlier this week.
Reuters could not independently confirm the complaint had been filed in court by WhatsApp, which has nearly 400 million users in India, nor when it might be reviewed by the court. The people with knowledge of the matter declined to be identified because of the sensitivity of the issue.
A WhatsApp spokesman declined to comment.
The lawsuit escalates a growing struggle between Indian Prime Minister Narendra Modi's government and tech giants including Facebook, Google parent Alphabet and Twitter in one of their key global growth markets.
Tensions grew after a police visit to Twitter's offices earlier this week. The micro-blogging service had labelled posts by a spokesman for the dominant party and others as containing "manipulated media", saying forged content was included.The government has also pressed the tech companies to remove not only what it has described as misinformation on the COVID-19 pandemic ravaging India, but also some criticism of the government's response to the crisis, which is claiming thousands of lives daily.
Two women married to the same man faced trial on charges of exchanging abusive words on WhatsApp in the Ras Al Khaimah Misdemeanour Court.
Congress president Rahul Gandhi on Monday admitted to the Supreme Court that he erred in saying that the court called Prime Minister Narendra Modi a thief. Expressing regret, Rahul said he had made the remark against Modi “in the heat of campaiging.”
The purported text exchange three days before the airstrike indicates Goswami had prior knowledge of the attack and that it was designed to drum up support for Modi in his reelection bid in pending parliamentary elections.
Taking place from November 3 -13, 1.3 million unique titles including 110,00 new releases mark the annual literary event.
The Ministry stressed in a statement on Monday that its aim to continue expanding the scope of testing nationwide to facilitate the early detection of coronavirus cases and carry out the necessary treatment.
Minister C.N. Ashwath Narayan visited the d3 (Dubai Design District) on Sunday, along with senior officials among others.