WASHINGTON (AFP) - US President Barack Obama on Sunday paid tribute to India and Americans of Indian descent, on the eve of observances marking India's establishment as a sovereign democratic state. The US leader hailed "our shared belief in democracy, liberty, pluralism, and religious tolerance," ahead of observances Monday for Indian Republic Day. "Our nations have built broad and vibrant partnerships in every field of human endeavour," said Obama, who assumed the US presidency last week. "Our rapidly growing and deepening friendship with India offers benefits to all the world's citizens, as our scientists solve environmental challenges together, our doctors discover new medicines, our engineers advance our societies, our entrepreneurs generate prosperity, our educators lay the foundation for our future generations, and our governments work together to advance peace, prosperity, and stability around the globe," he said in a statement. "It is our shared values that form the bedrock of a robust relationship across peoples and governments," Obama said. "Those values and ideals provide the strength that enables us to meet any challenge, particularly from those who use violence to try to undermine our free and open societies. "As the Indian people celebrate Republic Day all across India, they should know that they have no better friend and partner than the people of the United States." The new US leader also extended to India's ailing prime minister Manmohan Singh wishes for a "quick recovery," during his convalescence from heart bypass surgery performed on Saturday.