Which one of the following statements in respect of the States of India is not correct?

Which one of the following statements is incorrect?

Which one of the following is not correct in the matter of formation of new States?

Which one of the following is the correct chronological order of the formation of the following states as full States of the Indian Union?

Which one among the following states has the highest number of seats in the Council of States?

Which of the following was the first State in India formed on linguistic basis?