External Affairs Minister S M Krishna today said the only way forward to normalisation of relations with Pakistan will be a sustained dialogue with it. Replying to supplementaries on his visit to Pakistan recently, he informed the Rajya Sabha that any further terror attack on India emanating from Pakistani soil would cause immense harm to the normalisation process between the two countries. The External Affairs Minister also called for credible and firm action against terror groups and their leaders when he met his Pakistani counterpart.