At the press briefing, Modi and Trump agreed that they would meet at an early date to try and sort out issues pertaining to trade between the two countries.
US Secretary of State Mike Pompeo said the US-India partnership is reaching new heights with cooperation in the defence and other sectors and a common vision for free and open Indo-Pacific.
Pompeo's visit comes ahead of a meeting between US President Donald Trump and PM Modi on the sidelines of the G20 Summit, which will be held in Japan's Osaka on June 28-29.
Diplomatic sources say that S-400 is an issue, a matter of concern for the US but the deal cannot be set aside as India has a long-standing relationship with Russia.
India and Russia signed a $5 billion S-400 air defence system deal in October last year.
Brushing aside the threat of American sanctions, India in October last year signed the much-anticipated S-400 long-range surface-to-air missile defence system deal with Russia.
Under the CAATSA sanctions, only Trump has the authority for the presidential waiver to India on weapons deal with sanctions-hit Russia.
China will sell 48 high-end military drones to its 'all-weather ally' Pakistan in what a military observer said will be the largest deal of its kind between the two countries.
The delivery of the missile systems, tipped to be over USD 5 billion, will start 24 months from the signing of the contract.
The US had earlier urged its allies to forgo transactions with Russia, warning that the S-400 missile defence system that India intends to buy would be a 'focus area' for sanctions.
