The incident is of Kasturba Gandhi school of Triveniganj in Supaul. The 34 girls were admitted to Triveniganj referral hospital after the assault where they were said to be out of danger.
The girls have alleged that the boys used to pass lewd comments at them. When the girls resisted their advances the boys barged into the school and attacked the girls leaving many injured.
DM Baidyanath Yadav has directed to register a complaint against the accused goons.
Four of the victims complained of sickness today and were again taken to referral hospital. As many as 12 girls still remain in the hospital.
It is being said that the girls have suffered internal injuries after the attack which is why they are falling sick.
Former Deputy Chief Minister of Bihar Tejashwi Yadav took to Twitter to criticise government for the unabated increase in crime against women in the state.