It means that something is definitely not possible or not in consideration.

इसका प्रश्न ही नहीं उठता कि

English Usage: There is no question of him arriving on time because he missed the last bus.

Hindi Usage: उसके समय पर पहुँचने का प्रश्न ही नहीं उठता क्योंकि उसने अंतिम बस छोड़ दी।