On intelligence inputs, Delhi Police Crime Branch took the staffer identified as Mehmood Akhtar in custody. He was released after questioning as he enjoys diplomatic immunity, they said. Details of what happened at the meeting are awaited.
The Crime Branch also arrested two persons, residents of Rajasthan, for allegedly passing on sensitive information to the staffer.
The spies are residents of Rajasthan working for Pakistans Inter-Services Intelligence. The spies were in touch with the staff at the Pakistan high commission and were providing sensitive information, said a senior police officer.
Those arrested have been identified as Maulana Ramzan and Subhash Jangir.