The post-mortem report of the victim has confirmed rape and three teams have been formed to probe the matter.
"The post mortem report confirms rape. Three teams have been formed to investigate the matter. We have received some inputs. Probe underway," Satyendra Kumar, superintendent of police, Lakhimpur said.
Congress leader Priyanka Gandhi Vadra said that the girl was going to fill an online form when she was raped and brutally murdered.
The Congress general secretary said that this was happening on a daily basis in the state.
Gandhi urged Uttar Pradesh governor Anandiben Patel to take cognizance of the situation of women's safety in the state which she alleged had become "very bad".
"Your Excellency the Governor of Uttar Pradesh, the situation of women's safety in UP has become very bad," Priyanka Gandhi said.
"Hope you will understand its seriousness and take cognizance of it," Priyanka Gandhi said.
The Congress has been alleging that the law and order situation is deteriorating in Uttar Pradesh under the BJP rule, a charge denied by the state dispensation.
With inputs from PTI
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