Calcutta: Subhabrata Majumdar, the 46-year-old leather technologist arrested for preserving his mother Bina's body in a freezer at home for three years, claims to have been influenced by the "technology" and "vision" of an Arizona-headquartered organisation called the Alcor Life Extension Foundation.

Alcor's website calls it "the world leader in cryonics, cryonics research and cryonics technology".

"Cryonics is the science of using ultra-cold temperature to preserve human life with the intent of restoring good health when technology becomes available to do so. Alcor is a non-profit organization located in Scottsdale, Arizona, founded in 1972," states alcor.org.

Police quoted Subhabrata as saying that he had kept his mother's vital organs separately and embalmed the body in the hope of bringing her back to life someday with "experiments".

"Subhabrata Majumdar has mentioned Alcor Life Extension Foundation," the deputy commissioner of police (south-west), Nilanjan Biswas, said on Friday.

Subhabrata had been taken to the Institute of Psychiatry at SSKM Hospital for a medical assessment before being produced in court. The magistrate granted him bail and directed the police to keep him at Pavlov Institute, a facility for the mentally ill.

A post-mortem was conducted on Bina's body. "If no foul play is found (based on the post-mortem report), the body will be handed over to the legal guardian, in this case the woman's husband, for cremation," a senior police officer said.

Bina died at the age of 87 on April 7, 2015, and her husband Gopal Chandra Majumdar apparently knew that their son had preserved her body in a freezer. "I had asked him to stop this nonsense but he did not listen. He told me that he would not let any of us die. I am not involved in all this," Gopal was quoted as saying when he was interrogated on Thursday.

Subhabrata had requested the police to "be careful" while removing her body from the freezer, lest her brain be affected. Her liver, spleen and kidneys were found in separate canisters inside the same freezer.

Alcor's website states: "Vitrification (not freezing) can preserve biological structure very well. Adding high concentration of chemicals called cryoprotectants to cells permits tissue to be cooled to very low temperatures with little or no ice formation. The state of no ice formation at temperatures below -120°C is called vitrification. It is now possible to physically vitrify organs as large as the human brain, achieving excellent structural preservation without freezing."

A police officer said Subhabrata had told interrogators that he was "trying to follow the same procedure of preserving a body".

Metro wrote an email to Alcor on Friday afternoon, enquiring whether Subhabrata had registered with the organisation. An auto-generated acknowledgement arrived along with an assurance of a reply soon. But there was no further response till late in the night.