Who among the following geographers is related to 'primate city' concept?

According to Census of India, 2011, which one among the following is the least populated state in India?

Which one among the following is the most populated State in India as per Census 2011?

Which one of the following is not among the principal languages of Jammu and Kashmir?

Which one of the following is the first urban settlement in the world to reach a population size of one million (million-plus city)?

Which of the following statements is true?