The nineteen year old Nusrat Jaha Rafi died in April in Feni, a small town 100 miles outside Dhaka.
Her death raised a series of protest in the country as the incident had shocked the nation.
Such case in Bangladesh usually take years to reach a verdict, her case has been the quickest in the country.
Prime Minister Sheikh Hasina had promised the culprits will not be spared.
A look into Nusrat Jana Rafi’s case
The nineteen year old reported harassment by her headmaster at the Sonagazi Islamia Senior Fazil Madrasa, on 27 March. She complained the headmaster who had called her in his office tried to touch her several times in an inappropriate manner. She managed to escape somehow.
Nusrat went to police station to report sexual harassment along her family.
She was filmed in the police station while being questioned, The video was leaked on social media by the police officer.
The headmaster was taken into police custody and things started getting worse for her.
Some of the male students along local politicians staged protest in front of the police station demanding release of the headmaster.
On 6th April Nusrat went to her madrassa for her final exams, companying her was her brother. Her brother was not allowed to come inside so she went alone.
She was lured on the roof top of the school by a female friend who lied about her friend being beaten up.
She found herself surrounded by four to five people in burqa who pressured her to withdraw her case.
When she refused she was doused with kerosene and set on fire.
Nusrat died of burns on 10th April and thousands of people attended her funeral.
Siraj Ud Doula’s lawyer, Mahfuzl Haque, said he will appeal the ruling. He believes evidence against his client was not properly scrutinized