India today said it was obliged to "consider the entire range of options that exist" with the failure of Pakistan to deliver on its promise of not supporting terror activities.

"Terrorism [Images] remains a scourge for our region. If a country cannot keep the assurances that it has given, then it obliges us to consider the entire range of options that exist to protect our interests and people from this menace," External Affairs Minister Pranab Mukherjee said, without naming Islamabad [Images].

"We have made repeated appeals to our neighbours over the years to ensure that they do not provide support to terrorist activities and to dismantle the terrorist infrastructure... but our pleas have been ignored in spite of assurances given by them," Mukherjee said.

He said this in his message from New Delhi [Images] to an international conference on south Asia in Gangtok. It was read out by the Sikkim University Vice-Chancellor Professor Mahendra P Lama at the inauguration of the three-day conference.

Mukherjee said the terror attacks on the financial capital of the country reflected the extent to which the terrorists have spread their network in the neighbouring country.