New Delhi, Aug 26 - Pakistan was duty bound to arrest Lashkar-e-Taiba (LeT) terrorist Hafiz Saeed after the Interpol warrant against him for allegedly masterminding the Mumbai terror attack, a CBI official said Wednesday.

'It is an administrative procedure and Pakistan is now obliged to arrest him and hand him over to India for trial in the Mumbai attacks,' CBI spokesperson Harsh Bahl told IANS.

Saeed heads the Jamaat-ud-Dawa, a front organisation of the LeT blamed by India for the attacks.

'The red corner notice (Tuesday night) follows non-bailable arrest warrants by a special court in Mumbai against Saeed and Lakhvi and 20 others for their alleged roles in the attacks.