Reliance Industries is the largest publicly traded company in India with a market capitalization of over $236 billion. It generates revenue through oil refining and petrochemicals, retail, digital services, and other ventures. The Tata Group is one of India's oldest and largest conglomerates, employing over 700,000 people. It contributes 4% to India's GDP through companies like Tata Consultancy Services, Tata Steel, and Tata Power. HDFC Bank is India's third largest bank by market capitalization. It has over 5,300 branches across India and maintains low non-performing assets while providing high customer experience.