The post-mortem report had said that the girls, aged six, nine and eleven years, were raped and murdered. However, sources close to the investigation claim that they were not raped.
A recent forensic analysis report also showed that the girls were neither strangulated nor poisoned but failed to pinpoint the cause of the deaths.
Bhandara Superintendent of Police Dr Arti Singh could not be contacted for confirmation of these reports.
Yesterday, a team of National Commission for Women had visited the victims' family members at the village.
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Smita Singhalkar, a member of the team, told PTI today that it was unfortunate that there were no witnesses as the crime site was only two km off a national highway.
The three sisters, who were studying in a local school, had gone missing on February 14 and their bodies were recovered from a well in the village on February 16.
Political leaders are making a beeline to meet the victims' family. Home Minister R R Patil and Union Minister Praful Patel had earlier visited the village. Shiv Sena youth wing president Aditya Thackeray, and Sena leaders Vinayak Raut, Deepak Sawant, Neelam Gorhe and Ashish Jaiswal visited the family last evening.