Radha Devi (26) died on Wednesday evening during delivery of her twin children, police said.
"The doctor has operated my pregnant wife during delivery of twins carelessly on late Wednesday evening that after sometime she expired," according to the complaint filed by the woman's husband Sunil Kumar.
The victim's family members protested over the incident and shouted slogans against the alleged incompetence of the doctor following which police had to intervene.
An FIR has been filed against the doctor by the family members and the situation was brought under control, Deputy SP Dr Ajai Pal Sharma said.