Parents of Aarushi Talwar, who was found murdered at her Noida residence about two years ago, have to undergo a series of narco-analysis tests which began on February 8 in Gujarat's Gandhinagar district.
While the tests are being conducted on her mother Nupur Talwar, her father Rajesh Talwar will undergo the tests from February 15 at the Forensic Sciences Laboratory in Gujarat.
"The tests on Nupur Talwar started on February 8 and will continue till February 12. The narco-analysis of Dr Rajesh Talwar will start from February 15 and will continue till February 20," official sources told PTI.
On January 5, the CBI had sought permission from a Ghaziabad court to carry out narco-analysis tests on the couple.
Aarushi (14) and her domestic help Hemraj were found murdered at their Noida house on May 16, 2008.
Though a narco-analysis test takes only three hours, in this case, the couple is subjected to the tests for nearly five days each.
"It takes time because of the quantum of the query that is needed. In this case, since there is no headway yet, we are leaving no stone unturned to extract as much information as they have," the sources said.
"It took us so long to carry out the test since there is overcrowding of cases here. We also had to study the past outcome of the test undertaken by the Talwar couple. We had to jump the queue to conduct the test for which the CBI paid more than a lakh," they said.
Narco analysis involves psychotherapy which is conducted while the patient is deeply sedated with medication so that inhibitions are reduced and responses will be more truthful.
The CBI conducted brain mapping and lie detector tests of the Talwars in 2009 but no narco analysis was done on the couple.
