The correct answer is 2 only.

• There shall be a Parliament for the Union which shall consist of the President and the two houses to be known respectively as the Council of State and the House of the People.
• Council of State shall consist of
  • 12 members to be nominated by the President shall consist of persons having special knowledge or practical experience in respect of the matters namely literature, science, art, and social service.
  • Not more than 238 representation of the states and the union territories.
  • The allocation of seats in the Rajya Sabha is to be filled by representatives of the states and the UT as per the Fourth schedule.
  • The representatives of each state shall be elected by the elected members of the Legislative Assembly of the state proportional representation using Single Transferable Vote.
  • The representatives of the union territories in the Council of States shall be chosen in such a manner as Parliament may by law prescribe.
• Subject to the provisions of article 331 the House of the People shall consist of
  • Not more than 530 members elected by the direct election from territorial constituencies in the state.
  • There shall be allotted to each state, several seats in the House of the People in such a manner that the ratio between the number and the population of the state, so far as practical, remains the same throughout the state provided that this shall not apply for allotment of seats in the House of the People to any state so long as a population of that state does not exceed 6 Million. Hence statement 1 is correct.
  • Not more than 20 members to represent the union territory chosen in such a manner as Parliament may by law provide after 31st amendment 1973.
  • For population, 1971 census is referred to first after the 42nd amendment 1976 and then after the 86th amendment 2001 till 2026. 
  • For the division of the state into territorial constituency 2001 census is referred to after the 87th Amendment Act 2003. Hence, Statement 2 is incorrect.