Amazon is investing over $5 billion for its Indian unit to turn the  website into the largest e-commerce portal in the subcontinent. The  retailer rolled out its Prime subscription service  in the country last year, and introduced Prime Video a few months ago. Now it looks like Amazon wants to bring its Echo lineup to India by the end of the year.   That's according to two anonymous sources speaking to Economic Times .  This isn't the first time we're hearing about the Amazon Echo landing  in India, but ET's report also states that Alexa — Amazon's voice-based  assistant — will include support for regional languages: Marathi, Tamil  and Hindi.   Amazon is said to initially offer Alexa in English, with support for  local languages coming shortly afterwards. Alexa has turned into a  robust platform over the last two years, with the assistant doing over 1,200 skills — everything from calling a cab, ordering items on Amazon, sending a text with your voice, and mor...