The victim was married to the accused, Rahul.
"A few days ago the girl came to know that Rahul was already married. She then approached police and filed a complaint," a police officer said yesterday.
Rahul had got married nine years ago and has two children, who stay in Okhla.
A case was registered Monday after her medical examination confirmed rape. Rahul was arrested and sent to judicial custody.
Photos: SRK does garba, Nawazuddin takes 'shower' in bathtub
Photos: Soha Ali Khan, Evelyn Sharma, Urvashi Rautela at Mumbai airport
Spotted: Lara Dutta, Mahesh Bhupathi with their daughter in Bandra
Photos: SRK, Tamannaah Bhatia, Varun Dhawan at Mehboob Studio
Birthday special: Sushant Singh Rajput's journey from TV to films