US Defence Secretary Lloyd Austin arrived in India on Sunday on a two-day visit.
Austin's trip comes over two weeks ahead of PM Modi's state visit to Washington.
The two sides are expected to unveil initiatives to expand the India-US global strategic partnership.
Austin is here to explore ways to further strengthen bilateral defence cooperation.
NSA Doval-US' Austin vow to boost defence, aerospace ties to counter China's footprint in Indo-Pacific.
Rajnath Singh held wide-ranging talks with his American counterpart Lloyd Austin on Monday.
Austin asserted that "US is 'absolutely committed' to 'our historic investment' in ensuing technology cooperation with India.
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