Indian banks have pursued various strategies to manage rising NPAs, including preventative measures like monitoring early warning signs and proper risk assessment, as well as curative measures like restructuring loans and using legal tools for recovery. While NPAs declined overall in the past decade, analysts believe some banks concealed bad assets. The global financial crisis caused NPAs to surge in the US and Europe, threatening banking systems. India's economic slowdown has also impacted loan repayment, raising concerns about future NPA levels in the country.