The article highlights the concerns in Russia regarding the potential impact of the Covid-19 pandemic on India's large tea plantations, which could lead to a significant increase in tea prices. Indian tea makes up about one-third of the Russian market, and suppliers warn of possible price hikes, potentially as high as last year's 30% increase, during the summer harvests. The article also mentions the possibility of a shift in supply to countries like Sri Lanka and Kenya, but experts doubt these supplies can match the quality of Indian tea. The concern is compounded by the recent price hikes of other basic food products in Russia, leading to government price regulation and raising worries about the impact on Russia's tea-drinking population.