India State/UTs & Districts - National Portal of India, Government of India - The official list of India's 28 states and 8 union territories with their capitals, updated in 2026. Use it to check any state or capital in this chapter.
Article 1: Name and Territory of the Union - Constitution of India (constitutionofindia.net) - The opening article that calls the country "India, that is Bharat," with notes on how the Constituent Assembly debated the name.
Eighth Schedule: Languages - Constitution of India (constitutionofindia.net) - The list of India's 22 scheduled languages and how it grew from 14 in 1949. Helpful for the sections on linguistic states and Hindi.
Chandrayaan-3 Details - Indian Space Research Organisation - ISRO's own description of the Chandrayaan-3 lander, rover and science instruments.
India: Quick Facts - Encyclopaedia Britannica - Current basic facts about India, including its government, leaders, languages and currency.
Population, total: India - World Bank Open Data - The source of this book's 2025 population figure for India. Switch to "Urban population (% of total)" to see how fast India's cities are growing.
Adivasi - Wikipedia - An overview of India's Adivasi communities, the meaning of the word, the major groups and regions, and the 2011 census share (8.6%). Use it as a starting point and follow its census citations.