New Delhi, May 22 -- Cab aggregator Uber has fallen into the consumer protection regulator's crosshairs. India's Central Consumer Protection Authority (CCPA), which is an arm of the consumer affairs ministry, has issued it a notice for nudging ride hailers to tip drivers in advance of their rides.

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While booking a ride, users are offered the choice of tipping varying displayed amounts to the driver, with the user led to view it as a way to get a quick ride confirmation. This has understandably come under the scanner.

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In a post, consumer affairs minister Pralhad Joshi expressed displeasure at such advance tips, ...