Why is Sri Lanka now being called 'upper-middle-income economy' but India is not?

The World Bank classified Sri Lanka as an upper-middle-income economy, three years after it reached the brink of collapse amid an economic crisis. Sri Lanka achieved the milestone as its GDP grew 5% in 2025, signalling an economic rebound and taking its gross national income/capita above $4,516. India is considered a lower-middle-income economy as its GNI/capita hasn't crossed the threshold.