According to census and global data, India accounts for approximately what percentage of the total world population?

Consider the following statements regarding population distribution in India: I) Physiography, climate, and water availability strongly influence population distribution and density. II) Northern plains have high population density due to fertile alluvial soil and abundant water. III) The Peninsular Plateau uniformly exhibits very low population density throughout its region. Which of the statements given above are correct?

Which of the following sequences shows the correct ASCENDING order of Indian states in terms of population size according to Census 2011?