<h1>Markets rise on optimism over US-India trade talks as investors expect tariff easing, rate cuts, GST reforms, foreign inflows</h1> Benchmark equity indices rose after renewed optimism over bilateral trade negotiations between the United States and India, with markets citing expectations of a successful conclusion to talks addressing tariff barriers and related trade measures. Investors anticipated supportive macro moves, including potential US interest-rate cuts and domestic GST rationalisation, which buoyed IT and capital goods stocks and prompted foreign institutional buying. The developments could affect future tariff regimes, market access commitments, and investor protections, potentially prompting regulatory adjustments and contractual renegotiations for affected sectors; stakeholders should monitor negotiation outcomes for legal and compliance implications on tariffs, trade remedies and investment flows.