India, Sept. 23 -- Prime Minister (PM) Narendra Modi has embarked on his first foreign tour in six months to engage directly with the Joe Biden administration in the United States (US). Given the trajectory of India-US ties in recent decades, all bilateral engagements between the two nations come with a sense of anticipation, but this visit will be watched even more closely as it will dare to tackle some key challenges that have emerged in the last few weeks. America's precipitous withdrawal from Afghanistan and the signing of the AUKUS trilateral defence pact have raised some questions in Indian strategic circles about the Biden administration's commitment to the larger India-US bilateral project....