(spoilers) Two questions

***Spoiler Alert- Don't read if you have not watched the movie***

1. No, it's not revealed.

2. I understand Malayalam. Even though the camera pans to the papers Raghavan gave to the journo, it is not readable for us, the audience. Nothing else is conveyed using the transcript in the papers. We are supposed to infer what might have happened based on the subtle hints left here and there.

1. No, they don't. It doesn't matter how he killed them.
2. The story he wrote was of course his past i.e. the story of how he got to the murder of two women. It was because both were hindering his freedom. His wife (presumably) used to nag all day along, so he killed her. The Other woman might have been an obstacle. Now, even Anjali tried to be an obstacle as she was forcing him to write and to capture his past. She even relocates him to a remote hut, which is when he confirms his next victim. He liked prison more than the outer world and he knew not killing Anjali would further worsen his predicament. So he kills her and happily goes back where he belongs.

If you read Franz Kafka's "The Trial," which is mentioned in the film at the beginning by Prathap Pothan, you will get a broader insight into what this film so magically tries to convey. Brilliant!

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Its all about freedom. Hope u have seen the actor getting angry in the bar when he was asked about freedom.. The dialogue in bar scene indirectly says that he has killed two ladies. For him, its just removal of obstacles which block his path of freedom. Similarly his freedom was questioned or blocked by the journalist for her personal benefit. I assume that the the pages he give to journalist finally says that he killed them due to this reason and she is the next victim .

Total essence : The definition of freedom is different for different individuals. Whatever be that, respect it.