Asus was one of the players responsible for upending the Indian smartphone market in 2014. After years of missteps entering the smartphone space, the Taiwanese PC component giant finally hit it big with its ZenFone lineup – the ZenFone 4, ZenFone 5, and ZenFone 6. Each of the three served a different market, giving customers plenty of choice under Rs. 20,000. Now, following plenty of positive...