President Obama spoke on the phone with Prime Minister Modi yesterday to thank him for "his partnership" and to review joint efforts of cooperation including defence, civil-nuclear energy, and enhanced people-to-people ties, a readout of the telephonic conversation between the two leaders said.
"Recalling his visit as the chief guest at India's Republic Day celebrations in 2015, President Obama wished the Prime Minister warm congratulations ahead of India's upcoming 68th Republic Day anniversary," the White House said.
"Both leaders discussed the progress they have made on shared economic and security priorities, including recognition of India as a major defense partner of the United States and addressing the global challenge of climate change," it said.
President Obama was one of the first leaders to congratulate PM Modi after his electoral victory in May 2014 and immediately invited him to visit the White House.
The two leaders met at the White House in September 2014.
Since then they have met each other eight times. This is a record for leaders between India and America.
"They have a great deal of personal camaraderie. But they also have a great deal of respect for each other for the leadership and the values and the integrity of each other's approach," Ms Biswal told news agency PTI in a recent interview.
"You have seen from President Obama that appreciation of Prime Minister Modi in words that he has used to describe him including in that Time magazine profile of the Prime Minister. You have seen that Prime Minister Modi's appreciation of President Obama, of his values, his leadership style which the Prime Minister has used to describe the President," she said.
She said that it is not a relationship that just came about that day when President Obama called Prime Minister-elect Modi to congratulate him.
"The seeds of this relationship were actually sown many decades earlier," Ms Biswal had said.