Future of Indo-U.S. Ties Holds Extraordinary Potential: Lawmakers

"As longtime supporters and advocates for a deepening partnership between the United States and India, we appreciate the efforts by you and previous Administrations in working to sustain, deepen and expand this relationship," they said.

"The relationship between the world's oldest and the world's largest democracies has grown stronger over the years, and there is bipartisan support for expanding U.S.-India co-operation going forward," the Senators said.

Meanwhile, Cornyn sent a separate letter to Prime Minister Narendra Modi and said that he looks forward to "partnering" with him to promote greater co-operation between the U.S. and India.

"As co-founder and the Republican Co-Chair of the Senate India Caucus, I stand ready to work with you and the government to promote and strengthen the partnership between our two great democracies," he wrote.

"The strategic relationship between the United States and India is multifaceted. In recent years, significant progress has been made in a broad range of areas, including defense ties, security co-operation, economic relations and education," Cornyn wrote.