The arrest of seven persons for a break-in at the house of a government doctor in Jamalpur has thrown up a twist: the cops say the key accused, a former nurse, masterminded the robbery to take revenge for the doctor sexually exploiting her for a decade.

The robbers had raided the East Colony official quarters of Dr Rakesh Kumar Sinha, additional chief medical officer, Government Railway Hospital, Jamalpur, on September 16 and looted ornaments, a mobile phone, CCTV cameras, etc.

The cops in Jamalpur, around 182km east of Patna, arrested seven persons on Friday, including the 30-year-old untrained nurse, over the robbery. Interrogation of the arrested accused threw up the revelation of the motive behind the crime, the police said.

“The nurse has confessed before the police that she had masterminded the daring dacoity with the help of her ‘boyfriends’ to teach a lesson to the doctor who had allegedly sexually exploited her for 10 years on the pretext of getting her a railways job,” Munger superintendent of police (SP) Babu Ram told The Telegraph on Friday.

The other arrested persons are Raja Kumar, Pravesh Kumar, Pankaj Kumar, Jitendra Kumar, Sandeep Kumar and Ankit Kumar.

Five of them are residents of Jamalpur, one is from Biharsharif and one is from Nalanda.

SP Babu said when the nurse had realised that she had been taken for a ride by the doctor, she had tried to start a fresh life.

“When she didn’t get a government job with the help of Dr Sinha, she married a young man two years ago and now she has an eight-month-old baby. But the doctor ruined her married life by telling her husband about her relationship with him,” SP Babu said.

“Her husband then broke off the marriage and has left her alone and helpless with a baby. So, she had planned the dacoity in the house of the doctor to teach him a lesson,” he added.

The SP said the police would lodge “a criminal case against the additional chief medical officer of the Jamalpur Railway Hospital to probe the charges levelled against him by the former nurse”.

Repeated attempts to contact Dr Sinha to get his reaction to the allegations levelled against him by the arrested nurse proved futile; his cell phone was switched off.