Narco-analysis tests of Aarushi Talwar's parents has begun in Gandhinagar district of Gujarat. Official sources said tests are now being conducted on her mother Nupur Talwar.<br/><br/>Rajesh Talwar, her father, will undergo the tests from Friday at the Forensic Sciences Laboratory in Gujarat.<br/><br/>Last month, the CBI had sought permission from a Ghaziabad court to carry out narco-analysis tests on the couple. Aarushi and her domestic help Hemraj were found murdered at their Noida house on 16th May, 2008.<br/>