The Patiala House Court on Saturday extended the police custody of ex-IAF airman Ranjit till January 4.
Earlier, a team of Delhi Police had arrested him from Punjab for his alleged links with Pakistan's ISI.
The officer from Kerala, was allegedly 'honey trapped' into carrying out an espionage operation by a woman whom he met through a social networking site.
He was posted at the Bathinda Air Force station close to the India-Pakistan border in the rank of Leading Aircraft Man.
Ranjit was earlier brought to the Patiala House Court and he was sent to a four-day police custody.
