As per March 2001, India’s population stood at 1,028 million, which account for 16.7 percent of the world’s population.
• According to the data, Uttar Pradesh is the most populous state of India with a population size of166 million, which account for 16 percent of total India's population.
• Sikkim's population - 0.5 million (5 lakhs) while Lakshadweep has 60 thousand people.
• The five states Uttar Pradesh, Maharashtra, Bihar, West Bengal, and Andhra Pradesh. Rajasthan holds almost half of Indian population (48.8%).