Details of interception of what is being described as “non-specific” conversations between Pak intelligence officials and militia in Afghanistan were passed on through diplomatic channels to India. Following the warnings, security around the Indian mission was strengthened. In end-June, it was US intelligence that intercepted telephone conversations and picked up “specific warnings” and later, still days before the attack, Indian intelligence agencies intercepted telephone conversations which are, however, described as “somewhat vague.”

Significantly, 10 days after the attack, copies of transcripts of telephone calls intercepted by US intelligence were handed over to Indian officials in Washington, which explains New Delhi’s assertiveness that it has “sufficient proof” about the perpetrators of the attack, an allegation Islamabad has vehemently denied.