New Delhi, May 20 -- With discounts on Russian crude oil dwindling, India, in a first such effort, has brought together state-owned and private oil refiners to jointly negotiate for higher discounts and better terms with Russian suppliers, including Russia's largest oil company Rosneft PJSC. The government-led joint sourcing strategy involves leveraging India's position as the world's third-largest crude oil buyer to get better discounts on Russian oil, which have dropped to about $3 per barrel from a high of $10 earlier, said two people aware of the development....