Though she was suspected to have collapsed due to drug over use, reports of her stomach wash was found "negative" while results of the blood and urine samples sent to the forensic laboratory is expected by tomorrow, which will determine what made her pass out.
"The next 48 hours will be critical for her," J J Hospital Dean Dr T P Lahane told reporters in the afternoon when asked if she is out of danger.
"We did not find the drug in the gastric test. If the drug must have dissolved in the body we will come to know when we get the urine and blood sample report by tomorrow evening," he said.
Principal Secretary (Prisons) Vijay Satbir Singh said reports of Indrani's stomach wash was negative while blood, urine samples sent to Kalina Forensic Laboratory was expected by tomorrow.
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Briefing reporters on her condition, Lahane said "We can not say that Indrani is out of danger before the next 48 hours. 72 hours are very critical out of which 24 hours have already passed. We will be able to say only after 48 hours whether her condition has improved or not."
Asked if any report has emerged that she had attempted suicide in the prison yesterday where she was lodged under judicial remand, he said "we can not say anything about that for now."
Indrani's lawyer also moved a local court seeking permission to meet her in the hospital and court sought a report on her health condition.
During the hearing, the CBI, which has taken over the investigation in the Sheena murder case, told the court the probe is at an initial stage and the gravity of the offence is very serious.