Which of the following does not belong to the group?

Study the following information carefully and answer the given questions: 7 persons – Garima, Ayushi, Chaman, Poonam, Heena, Vikas and Rahul live on 7 different floors in such a way that lowermost floor is numbered 1 and topmost floor is numbered 7. They are born in different months – January, March, April, June, July, August, September but not necessarily in the same order. Person born in a month having odd number of days lives on odd numbered floor while person born in a month having even number of days lives on even numbered floor. Garima was born in July. Heena is an immediate neighbor of person who was born in August. The one who lives on floor numbered 6 was not born in June. Poonam was born in a month having less than 31 days. Only 2 persons live between Chaman and the one born in July. Equal number of floors is there between the floors on which person born in January and March lives as there are months in January and March according to calendar. There is only 1 floor between Vikas and Rahul, who was born before Vikas. Chaman was born neither in April nor in June. Poonam was born after April. Vikas was born neither in August nor in January. Equal number of persons lives between Garima and Chaman as between Chaman and person born in August.Ayushi was born neither in March nor in August.