Understand US and Indian tax obligations for NRIs, including IRS federal income tax, Indian income tax, capital gains, TDS, and taxation of foreign investments. Explore FBAR, FATCA, Form 8938, PFIC reporting, foreign tax credits, the US–India Double Taxation Avoidance Agreement (DTAA), tax residency, and filing requirements. Learn about applicable IRS, Income Tax Department, RBI, and FEMA rules, alongside taxation considerations for NRIs in other countries.