On which of these days in the month of Chaitra is Lord Rama's birthday celebrated?
The correct answer is no # 2 Navmi
=> Purnima - The Full Moon is the lunar phase that occurs when the Moon lies on the opposite side of Earth from the Sun. The older method of assigning names is based on seasons and quarters of the year. For example Buddha Purnima comes in May or Narali Purnima, comes in August.
=> Navami - This day is the birthday of Rama. Rama Navami falls on the ninth day i.e. Chaitra Masa Suklapaksha Navami
=> Ashtami - This is victory date for Durga killing Mahishasura.
=> Ekadashi - Ekadashi is fasting day. Ekadashi itself is a combination of 'Eka' (One) and 'Dashi' (Ten), meaning the eleventh day after the full or new moon.
This is a question # 8 (episode #8) of KBC3.