Lahore: Pakistan People's Party (PPP) of former Prime Minister Benazir Bhutto has expressed doubts over President Pervez Musharraf's sincerity in the ongoing peace process with India even as it flayed Islamabad and New Delhi for raising the Defence Budget while talks were under way.

The PPP also demanded setting up of a judicial commission to probe responsibility for the Kargil aggression considering claims by the then Prime Minister Nawaz Sharif that Musharraf, then Army Chief, had initiated the action on his own.

"We doubt whether the Musharraf regime is really sincere in having peace with India... The judicial commission is necessary to prevent more Kargils from taking place," PPP leader and MP Manzoor Alam said.

Criticising both India and Pakistan for raising Defence Budget this year despite the peace process being under way, he said, "The step indicates intrigue in attitude."