New Delhi, Aug 31 - After months of investigation, the Delhi Police arrested from the national capital a man who had allegedly raped a teenager in Germany 12 years ago, police said Monday.

Jaswant Singh, 36, was arrested Sunday night from his house in Adarsh Nagar area in northwest Delhi.

'The accused went to Germany in 1992 and was staying there illegally. In 1997, he along with two of his friends Karan Singh, an Indian, and Mohammad Shahzad, a Pakistani, assaulted and raped a 17-year-old German girl at Darmstadt in Germany,' a senior police officer said.

According to the officer, the girl was walking back home Aug 1, 1997, after missing her train when the three spotted her. Jaswant Singh caught up with her and dragged her inside a park, where he raped her. The other two also raped the girl before letting her go.

The involvement of the three accused came to light when owner of Le Petit restaurant, where Jaswant Singh was working as a chef, overheard him and Karan Singh talking about the incident and informed the police.

While the other two were arrested, Jaswant Singh somehow escaped, and went to Holland from where he returned to India.

Karan Singh and Shahzad were put on trial in Germany and sentenced respectively to 10 and eight years' imprisonment.