The 23-year-old victim, along with her family, approached police late on Wednesday night after which an FIR under relevant sections of the IPC was lodged against the victim's husband, Punit Bhardwaj.
She was taken to Deen Dayal Upadhyay Hospital where sodomy was confirmed in her medical examination. She was also given medical assistance there, police said.
Her husband, who works as a project manager with a multi-national company, is at large and several police teams have been deployed to nab him, police said.
"In her complaint, the victim said that her husband's behaviour during their honeymoon in Bangkok caused unbearable physical and mental torture to her. She also said that initially, they were supposed to go to Maldives but her husband took her to Bangkok," a police official said.
The victim, who also works at a private firm, married Bhardwaj on November 29. It was an arranged marriage, after which the couple went to Bangkok on 1 December for their honeymoon and returned to the national capital on December 8.
The woman shared her ordeal with her parents after returning home, following which the family decided to approach police alleging that she was confined, mercilessly raped and sodomised by her husband during their honeymoon trip.
Police have taken up investigation and a manhunt has been launched to nab Bhardwaj, the official said.