New Delhi, Dec 10 (IANS): A court here on Thursday remanded five people arrested in an espionage case, including a BSF constable, in 14-day judicial custody.

Those sent to judicial custody by Chief Metropolitan Magistrate Sanjay Khanagwal were Border Security Force (BSF) head constable Abdul Rasheed, retired army havildar Munawwar Ahmad Mir, government schoolteacher Sabar, army soldier Fareed Ahmed and library assistant Kafaitullah Khan alias Master Raja.

The five - arrested in connection with alleged supply of secret Indian documents to an operative of Pakistan's Inter-Services Intelligence (ISI) - were earlier presented before the court on the expiry of their police custody.

Delhi Police told the court that the accused were not required for further custodial interrogation.

Ahmed was arrested from West Bengal while Mir and Sabar were arrested by a joint team of Delhi and Jammu and Kashmir Police.

Kafaitullah Khan, 44, a resident of Jammu and Kashmir's Rajouri district, was allegedly working for the ISI.

He was arrested from New Delhi Railway Station on November 26 on the charge of obtaining secret information related to India's national security and sharing it with the ISI, while Rasheed was held in Rajouri in Jammu and Kashmir.

Police sources in Jammu said Kafaitullah interrogation led to the arrest of Rasheed.

On Friday, a team of Delhi Police Crime Branch arrested Mir from Rajouri on the charge of involvement in the espionage.

According to Delhi Police, Sabar helped Kafaitullah Khan establish contact with Mir.

"Mir took retirement in 2011 after serving with a Rashtriya Rifles (Jammu and Kashmir Light Infantry) battalion," police said.