By Harmeet Shah Singh, CNN
New Delhi (CNN) - The headmistress of the Indian school that authorities say served toxic lunches, killing 23 students, was arrested Wednesday, police said.
Meena Kumari, 36, was taken into custody on her way to a court where she had gone to surrender herself, police Superintendent Sujeet Kumar told CNN. She will be questioned Wednesday and taken before the court Thursday, he said.
Authorities had been working to track down Kumari, who had been at large since the July 16 incident.
The whereabouts of her husband, who is not named as an accused person in the case, are still not known, Kumar added. Police want to question him in connection with the case.
Pesticides have been found in the food and oil used in the school lunch that sickened 25 others in northern India's Bihar state, police said.