₹1,200 crore this fiscal, as demand has started picking up with easing of lockdown curbs and rising e-commerce deliveries of non-essentials.The advertising blitzkrieg is led by Chinese smartphone brands such as Vivo, Oppo, OnePlus, Xiaomi and Realme, which have begun promoting new launches and offers through above-the-line (ATL) and digital-led marketing activities.Media buyers estimate the smartphone category, which spent ₹1,500– ₹1,700 crore in advertising last year, will continue to pump money into ads as smartphones emerged as an essential product during the nationwide lockdown.Industry experts believe that the lockdown has created pent-up demand and made consumers realise that technology is important, especially when they are working.