The correct answer is Uttar Pradesh, Maharashtra, Bihar, West Bengal, Madhya Pradesh.

• According to the census of 2011, the sequence of top five most populated states of India is Uttar Pradesh, Maharastra, Bihar, West Bengal, and Madhya Pradesh whose populations are 199812341, 112374333, 104099452, 91276115, and 72626809 respectively.

• There are presently 28 states in India.
• The total population of the country is 1.21 billion presently.
• According to the State Census 2011, the most populated state in India is Uttar Pradesh with a population of 19.96 crores.
• The least populated state in the country is Sikkim with a population of 60, 7688.
• The census of Indian states in 2011 reveals that Kerala is the highest literate state in the country with a 93.91% literacy rate.
• Bihar is the least literate state with a literacy rate of 63.82%.
• The Indian census 2011 state-wise shows that Kerala represents the highest sex ratio with 1084 females per 1000 males while Haryana features the lowest sex ratio in India with just 877 women per 1000 males.