Is the story abt Emily Rose true? I am talking about the exorcism that was done on Emily in 1960's or 70's

Yes, except for the possession part. The real truth is that Emily Rose was not possessed, she had epilepsy (seizures) and decided that she wanted God to take care of her seizures. In other words, she refused to take her medication. Herself, her ignorant family, and their priest insisted that it was possession.

Untreated epilepsy can cause hallucinations and delusions much like a mental illness can, and eventually death. Since her epilepsy was untreated, she had hallucinations of demons and delusions that she was "possessed." She died because of the brain damage that the untreated seizures caused, not from a "demon." There is no such thing as demons or possession. They are both mythology.

God cannot treat epilepsy, but medications do a wonderful job. If treated with medications, epileptics can live a perfectly normal life. I should know, I've lived with epilepsy my whole life, which has been perfectly normal. It's also treated with medication, which is why it's normal and why I'm still alive.

If Emily Rose hadn't been so astoundingly ignorant, she'd probably still be alive today and living a perfectly normal life, like most epileptics. But, sadly, she let ignorance get the best of her.

Yes, to some extent. The movie is based on an incident that happened in Germany in the 1970s.

It was true her parents turned towards the church for help when they should of given her medical attention and she died. She was a real girl. Her name was Anneliese Michel

http://en.wikipedia.org/wiki/Anneliese_Michel

It is based on a true story, but it is HEAVILY fictionalised and exaggerated by hollywood.

it is based on a true story

the girl was epileptic and the priest who believed she was possessed , denied her medication

it was taken to court

it was based on a true story.

No, it's fiction.