Surpanakha widowed

One day Ravana came across a band of daityas and started fighting them, A fierce battle ensued. Ravana defeated the daityas and went home.

When he came home, he was greeted by a wailing Surpanakha. She said Off the daityas that had been killed by Ravana, one of them was her husband.

Ravana said this had happened unknowingly and asked his sister to live with him.

This was the Surpanakha who ears and nose were cut off by Lakshmana. 

Surpanakha goes to Ravana

Surpanakha saw Khara and Dushana fall. Not knowing what to do next, then thought of Ravana. She left for Lanka.
Looking uglier with her nose and ears cut off, she was looking horrible.
She entered the court of Ravana. Ravana was in a discussion with his ministers when Surpanakha entered. She said O King, You are enjoying yourself here, and in the forest Rama is there, who has sworn to kill your clan. He and his wife are there, no one else around them. He has single handed, killed many rakshashas.
Ravana wanted to know about Rama and what he was doing in the forest.

Surpanakha said this was the son of Dashratha, who was in the forest to fulfill a promise. He was in the guise of a sage, but was not really one. He had a beautiful wife along with him. She was more beautiful than Lakshmi herself. Rama had a equally strong brother along him.
Sita's beauty was not comparable with any one in the universe.

Surpanakha said a great king like Ravana deserved a beautiful wife like Sita, and not a wandering exiled prince. She asked her brother to kill Rama and Lakshmana and bring Sita to Lanka.

Ravana wondered what he could do to get Sita over. He did not think if his sister's advice was good. He could not hear Surpanakha announcing his death. 

Fourteen warriors of Khara and Dushana killed

Khara and Dushana were shocked to see their sister in that state and wanted to know who was responsible for her condition.
Surpanakha said in the forest were two men who responsible for this. Dressed like sages, they were not sages. They had a beautiful woman along with them. She said she went to eat human flesh and for that they had cut off her ears and nose.

Khara Dushana chose fourteen strong warriors and asked them to go and kill Rama and Lakshmana and bring back their bodies, such that all could have the pleasure of seeing them being eaten by foxes and crows.

The fourteen warriors went with their weapons. They went where Rama and Lakshmana were.

Rama said they were not disturbing anyone, so why was there a need for a battle?

The warriors said they had problems with someone living like a sage and live peacefully. The sin that they committed was mutilating the face of their commander's sister.

They started showering weapons on Rama. Rama with a single arrow cut off all their weapons. He then shot fourteen arrows together and fourteen of them were killed. 

Surpanakha gets her nose and ears cut off

One day, Surpanakha, sister of Ravana happened to be in that part of the forest. One look at Rama, and she was instantly attracted towards him.
Ugly in nature and form, she changed her looks to resemble a beautiful woman, to entice Rama.
She approached Rama and asked him who he was. She said You look royal, but are dressed like a hermit. Why are you in this forest which is infested by demons. They are not far from here, so it is not a safe place to be in. I see a beautiful woman, with you. Who is she? I see another man here, who looks like you? Who is he?
Rama nicely said he was Rama,  son of Dashratha, king of Ayodhya and the woman was his wife, Sita. The other man was Lakshmana, his brother. I am hear to fulfill a promise. Who are you? You are as beautiful as the apsaras. Are you an apsara?
Surpanakha said she was sister of Ravana, king of Lanka. She was alone having lost her husband, and roamed around the world. Seeing Rama, she had given her heart to him, and wanted him to be hers. She said her brother, Ravana, ruled in Lanka. She had a brother, Kumbhakarna, who slept for six months. There was a brother, Vibhishana, who was a religious person. They all stayed in Lanka. There were two other brothers, Khara and Dushana, who were with her in the forest. Being the youngest, I have been spoiled. I desire you, please become mine. We will roam around together, and I will take you to places which no human has visited before. Sita will not be able to do this for you. If your wife and brother try to stop us, I will eat them up. Look at me, I am much more beautiful than Sita. Leave her aside, and come with me.
Seeing Sita feeling insecure, Rama asked her not to worry and he said he will have fun at the expense of this woman. He said to Surpanakha, I am already married and if I take you, you will have to share me with Sita. You see my brother, Lakshmana. He is alone. Go to him. Lakshmana is like me in looks, and he is also fair.
Surpanakha went to Lakshmana and said she wanted him. Lakshmana said he was nothing but a servant of Rama. Why have fun with a servant. Go back to the master.
Not realizing that Rama and Lakshmana were having fun, Surpanakha went back to Rama.
She said she had come back to him. It seems Sita was cause for rejection. She would kill and eat Sita and Rama would be free.
Changing to her original shape, Surpanakha rushed to eat Sita. Sita started running and Surpanakha chased her.
Rama said to Lakshmana, the joke had gone too far.
Lakshmana released an arrow and Surpanakha lost her ears and nose.
The ugly rakshashi was looking uglier with a nose cut and blood all over her.
She rushed to where Khara and Dushana were.