This was conveyed by Foreign Secretary S Jaishankar who summoned Pakistan envoy Abdul Basit to his office following brief detention of the staffer who was later released.
"FS summons Pak High Commissioner to convey that Pak High Commission staffer has been declared persona non grata for espionage activities," said Vikas Swarup, spokesperson of Ministry of External Affairs.
Acting on inputs, Delhi Police crime branch took the staffer identified as Mehmood Akhtar in custody after he was found in possession of certain defence documents. Akhtar was released after questioning as he enjoys diplomatic immunity, police said.
"The alleged spies are residents of Rajasthan working for Pakistan's ISI. They were in touch with the staff here at Pakistan High Commission and were providing sensitive information," said a senior police officer.
Those arrested have been identified as Maulana Ramzan and Subhash Jangir, he said.
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