Complex sentence: Her debut in Tamil cinema came with "Azhagiya Theeye" and her first role in Kannada cinema was in "Gaja" but the most notable one was the 2009 Tamil movie "Aadum Koothu", which won the National Award for the best Tamil film.
Split into simpler sentences: Her debut in Tamil cinema came with "Azhagiya Theeye" and her first role in Kannada cinema was in "Gaja". But the most notable one was 2009 Tamil movie "Aadum Koothu", the film which won the National Award for the best Tamil film.