Which one of the following is incorrect about the Indian Political System?

Which one of the following is correct about the languages mentioned in the Constitution of India?

Which one of the following is not matched correctly?

Which one of the following pairs is not correctly matched?

Which one of the following in Indian polity is an essential feature that indicates that it is federal in character?

The merger of a political party with another political party in India is recognised in which of the following conditions?