Tighter Western sanctions aimed at cutting Russia's oil revenue, seen as funding its war against Ukraine, have been increasingly hitting Russian oil supplies for India, which buys more than a third of its oil needs from Russia. Key oil suppliers to India Tagor is now heading to Dalian in China, while Tassos is diverting to Port Said in Egypt, the data shows. Guanyin remains on course to Sikka, a port used by Reliance Industries and Bharat Petroleum Corp Ltd. Indian Oil Corp, which was to receive the Tagor shipment, and BPCL did not respond to Reuters' emailed requests for comment. Zulu Shipping, linked to Panama-flagged Tassos and Tagor, and Guanyin-owner Silver Tetra Marine could not be reached for comments. Both companies are under U.S. sanctions. A Reliance spokesperson said that "neither of these two vessels, Guanyin and Tassos, is coming to us". Reliance has previously purchased oil in Guanyin.