Complex sentence: After learning of Arjun and Shailaja's love, Deva and Sundaramoorthy work up devious plans to break them up, and finally they succeed in creating a rift between the two lovers.
Split into simpler sentences: After learning of the Arjun and Sailaja's love, Deva and Sailaja's father work up devious plans to break them up. And finally they succeed in creating a rift between the two lovers.