Fill in the blanks with suitable words:
The state having the highest population in India is ________.

According to the numbers, Uttar Pradesh is the most populous state and Sikkim is the least populous state in India. With a union of 29 states and 7 union territories, India is the second most populated country in the world, after China. As per consensus of India 2011, the population of India is 1,210,193,422.