Netflix is offering free one-tier upgrades for the first 30 days of your subscription, in what is another new promo. That means if you pick “Basic”, you’ll be upgraded to “Standard”. And if you pick “Standard”, you’ll get a month of “Premium”.

source https://gadgets.ndtv.com/entertainment/news/netflix-free-upgrade-plans-standard-premium-subscription-offer-price-india-30-days-2234597