The post mortem report of the three women medical students has revealed that they died due to drowning and there is no visible external injury on their bodies.
Meanwhile, SVS Medical College Chairman Vasuki Subramanian has surrendered before the court.
Parents of one of the three girls who committed suicide, filed a petition in the Madras High Court today.
Filing a petition in the Madras High Court, the father also alleged that the post-mortem was done without his permission, and, therefore, demanded that it should be done again in Chennai.
"I filed a petition in the Madras High Court that the post-mortem should be done again in Chennai. Without my permission, they did the post-mortem of my daughter. I think she was murdered," he told ANI.
Yesterday, four people were detained in connection with this case where three second-year students of SVS Medical College of Yoga and Naturopathy and Research Institute at Kallakurichi near Viluppuram in Tamil Nadu committed suicide.
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The girls, in their suicide note, have accused the administration of charging excess fees and 'torture' and blaming college chairman Vasuki Subramanian for their death.
The three girls namely E. Saranya and V. Priyanka (both 18 years) and T. Monisha (19 years) in a two-page suicide note said that the students had filed several complaints against Subramanian but to no avail. Citing "torture" by the management, the girls hoped that their suicide would finally force the authorities to take action against the chairman.
The girls accused the administration of charging 'excess fees' around Rs. six lakh and never giving the bill. They also mentioned that the college lacked proper classes or teachers and there was 'nothing to learn'.
The students had been protesting for more than a month over lack of infrastructure, but it was only in the last two weeks that the protest turned vigorous.
The police, which have begun investigating this matter, have so far arrested the Shokkar Verma, the son of the chairman, in connection with this case.
Dravida Munnetra Kazhagam chief and former Tamil Nadu chief minister M.Karunanidhi has demanded a judicial probe by a sitting high court judge into the alleged suicide of three students of a private institution in the state's Villupuram District.
Suggesting that the incident is being covered up, Karunanidhi said that when the parents of Saranya, Monisha and Priyanka are in a state of denial about them committing suicide, then what was the reason for the ruling AIADMK to delay an investigation.
He insisted that there was a need for a proper probe to ascertain the cause of death of the three and for the families to receive appropriate compensation.