IN — India

India is the world's most populous country with over 1.4 billion people, a South Asian subcontinent spanning diverse cultures, languages, and religions. New Delhi is the capital, while Mumbai, Bangalore, and Hyderabad are major tech centers. India has one of the world's largest tech workforces and is a global IT services hub. The Indian Rupee (INR) uses the ₹ symbol, adopted in 2010. For developers, the IN country code maps to hi-IN for Hindi and en-IN for Indian English, among 22 official languages. The .in domain is heavily registered, and +91 is the dialing code. India's Indian number formatting system uses lakhs and crores (1,00,000 and 1,00,00,000) rather than millions and billions — a critical formatting difference. Aadhaar (12-digit biometric ID) and PAN (Permanent Account Number) have specific validation algorithms. India's UPI (Unified Payments Interface) has revolutionized digital payments and its API integration is essential for Indian fintech. The linguistic diversity with multiple scripts (Devanagari, Tamil, Telugu, etc.) makes India one of the most complex localization targets.