Congress leaders, including party president Sonia Gandhi called on US President Barack Obama, who is on a three-day trip of India.
The meeting, which took place in the afternoon at the Maurya Sheraton Hotel here, was closed to the press.
According to reports, it is customary for a US president to meet the opposition leaders when visiting a foreign nation.
Earlier in the day, President Obama, who was the chief guest at the Republic Day parade, became the first U.S. president to attend the January 26 celebrations.
President Obama is also the first U.S. president to visit the country twice while in office.