The Supreme Court on Friday instructed Nupur Talwar to surrender before CBI court as it dismissed her petition seeking stay on non-bailable warrant issued against her by a trial court for skipping a hearing in Aarushi-Hemraj double murder case.

Meanwhile, another petition by Nupur and Rajesh Talwar pleading to exempt them from facing trials was being heard.

Nupur Talwar and Rajesh Talwar, parents of the slain Aarushi, are accused of destroying the evidences in their daughter's murder case by CBI.

On Wednesday, the probing authorities urged the apex court to quash the petition filed by Nupur as they alleged that she was playing "delaying tactics" and "misusing" the legal process by filing petitions in various courts, hindering the investigating process.

On April 18, a CBI court trying the Aarushi case, issued a non-bailable arrest warrant against Nupur as she did not show up for the hearing. However, the CBI could not take her into custody as she disappeared without a trace when the officials raided her residences in Ghaziabad and New Delhi.

After giving the slip to the CBI officials, Nupur moved the Supreme Court against the non-bailable warrant.

Noting the SC direction to the CBI, the authorities sought for the extension of validity of a non-bailable warrant against Nupur. The apex court this month instructed the CBI to refrain from arresting Nupur until a SC bench hear her plea seeking for an anticipatory bail and stay on non-bailable warrant.

In 2008, Aarushi, a 14-year-old girl was found dead in her bedroom at her residence in Noida, Uttar Pradesh, with her throat slit. Hours later, another dead body was found on the terrace, which was identified as Hemraj, a house maid.

The double murder case was handed over to the CBI that indicted the parents' hand.