The bollywood starlet Amrita Rao is known for her sweet beauty and she has made her mark in the south as well. Now, the time has come for her younger sister to make her debut and that too in Tamil. Her name is Preethika and she will be doing a key role in the new movie 'Chikku Bukku'. The film has the raw hunk Arya in the lead and he is pairing up with the stunning beauty Shriya.