Indian Prime Minister Manmohan Singh on Sunday demanded that Pakistan should make a "firm commitment" to stop terrorists using its territory to stage attacks against India, the Press Trust of India news agency reported.
"There has to be a firm commitment that Pakistani territory is not used to support terrorist acts directed against our country," Singh said aboard his private plane as he headed to the Group of Eight summit in St Petersburg.
"But the commitment has to be backed by action on the ground," he told reporters travelling with him. The Indian PM's strong demand was made in response to last week's blasts in trains in Mumbai.
Lashkar-e-Taiba has emerged as a suspect in the Mumbai train bombings. The outfit has denied responsibility for the rush-hour attacks.
At the G8 summit, Singh is expected to press leaders of the world's 'most powerful' countries for greater co-operation in fighting terrorism in South Asia. He would meet leaders on Monday.
"We will impress upon the leaders ... that the international community must adopt an approach of zero tolerance towards terrorism anywhere," Singh said in a statement earlier on Sunday.