A Class 10 girl student was attacked with acid when she was sleeping in her school hostel in Jharkhand's Giridih district, police said.
According to police, the attack took place at the Kasturba Gandhi Ballika Awasiya Vidyalay, in Dumri town of Giridih district. The student has been admitted to a local hospital.
The hostel warden has been quizzed by police.
The hostel authorities, according to police, have claimed the incident could have been the work of an insider of the hostel.
Police have begun investigations and are trying to get video footage of the CCTV installed in the hostel.
In another development, police seized a large quantity of explosives in Pakur district on Wednesday.
According to police, more than 900 gelatin sticks were seized and one person was arrested from Chendanga village under Malpahari police station's jurisdiction of the district.