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The CBI's Central Forensic Science Laboratory analysed the notes in registers found in the house and statements of friends and members of the Chundawat family recorded by the police.
The police have approached the CBI's Central Forensic Science Laboratory to form a panel of psychologists to analyse the psyche of the deceased.
Tommy was tied to a grill, before the family members allegedly committed suicide.
The police are yet to solve the mystery of the pipes - all 11 of them protruding from a wall facing an empty plot, where there was no water outlet.
The doctor said the cause of the deaths has not been ascertained yet and therefore a 'suicide pact' remains only a theory at this point of time.
The police said they found 'notes' which probably hinted at the family's penchant for occult practices.