Complex sentence: Chittappa arrives at the place by kidnapping Thamarai and her mother insteads Kaushik, Idhayakani's uncle was kidnapped instead of Thamarai it turns out that Surya had saved her.
Split into simpler sentences: Chittappa arrives at the place by kidnapping Thamarai and her mother but Kaushik, Idhayakani's uncle, was kidnapped instead of Thamarai. It turns out that Surya had saved her.