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With about eight Indian reporters plus a straggler here and there, in English and in that marvel Hinglish, she carried on for minutes and minutes and minutes with that best kind of charm, the effortless kind.

Parag Gupta, product chief for Amazon Devices in India, on teaching Alexa to understand “Hinglish.”

Amazon.com is starting to learn Hinglish.

Hinglish borrows parts of both languages, including the grammar.

Hinglish is particularly important as technology spreads beyond major cities to India’s hinterland, where declining prices are fueling adoption of smartphones and the internet.