Chennai Police on Sunday claimed that they had cracked the murder of septuagenarian sisters that occurred in West Mamablam three years ago. They arrested seven persons, including a juvenile, on Saturday and have charged them with the murder.

The victims — Jayalakshmi (75) and her sister Kamakshi (72) — residing in K.R. Koil Street, West Mambalam, were killed on May 11, 2011.

Kumaran Nagar Police have identified Vijaya (42) and her husband Mahendran (43) of Perungudi, Vinod Kumar (19) of Taramani, Santosh (21), Hari (20) and Muthu (19) of Subbu Pillai Thottam in T. Nagar, and a juvenile, as conspirators in the murder.

Giving the details of the murder, a police official said that Vijaya had visited the home of the sisters, seeking work as a domestic help.

On learning that the women lived by themselves, Vijaya, along with her husband Mahendran, hatched a plan to murder them and steal their jewellery and money.

The couple, along with a gang, went to the home of the elderly women three days after Vijaya’s visit, murdered them and took off with some jewellery.

All the arrested persons were produced before the Metropolitan Magistrate at Saidapet and sent to judicial custody.

The Kumaran Nagar Police had in May 2012 claimed a breakthrough in the case and detained a few juvenile offenders.

They had also claimed that they were caught with a portion of the robbed jewellery. But they were unable to convict them then because of lack of evidence.

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