Complex sentence: Again Maan makes next attempt to kill Raju is by throwing Raju to the dogs.In one of the confrontations Raju mentions that he knows that Pratap Singh killed his brother.
Split into simpler sentences: Again Maan makes next attempt to kill Raju, which involved being thrown to the dogs. However, in one of the confrontations Raju does mention that he knows that Pratap Singh killed his brother.