Complex sentence: When Kumud realises this she tries to stop this and eventually succeds by finding out that Kabir is actually Saras's brother and Saras and Kumud rescue him from Gumans clutches in London.
Split into simpler sentences: When Kumud realises this she tries to stop this and eventually succeds. After all this Saras realises that he has a brother called Kabir and him and rescue him from Gumans clutches in London.