Separatist leader Syed Ali Shah Geelani was detained by the police at the Srinagar airport and put under house arrest soon after his arrival from New Delhi.
In the national capital, the chairman of the hard-line faction of the Hurriyat Conference was questioned by the Delhi police in connection with a hawala case.
"He was detained at the airport and put under house arrest soon after his arrival from Delhi," said the party spokesperson.
The Hurriyat hawk was scheduled to return to Kashmir on Tuesday but was stopped by the Delhi police at the airport for questioning in connection with a hawala case.
Geelani's close aide Ghulam Mohammed Bhat has been arrested in connection with the case. The pro-Pakistan Kashmiri separatist leader also underwent medical check-ups in Delhi.