Complex sentence: Mookaiyah (Rajinikanth) and his sister Bairavi (Geetha) are the children of a drunkard, are separated after Bhairavi gets lost in an accident.
Split into simpler sentences: Mookaiyah (Rajinikanth) and his sister Bairavi (Geetha) are the children of a drunkard. They are separated after Bhairavi gets lost in an accident.