Secretary of Iran's Expediency Council Mohsen Rezaei says Tehran and Islamabad should form a joint anti-terrorism command against bombers operating from Pakistan, PressTV reported.
On December 15, a terrorist attack took place at the Imam Hussein mosque in Chabahar in Sistan-Baluchestan Province where people were commemorating the martyrdom of the third Shia Imam, Hussein (PBUH).
At least 37 mourners were killed and more than 90 others were injured including women and children.
"This unpleasant incident has demonstrated the need for Iran to mend its security wall in Sistan-Baluchestan Province," Rezaei said in statement on Saturday.
"The Iranian government should create a joint command post with the Pakistani government... in order to destroy the terrorist training camps in that country," he added.
The terrorist group Jundallah has claimed responsibility for the Chabahar attack.
Jundallah, a Pakistan-based terrorist group, has carried out numerous bombings, assassination attempts, and terrorist attacks in Iran.
Its leader Abdolmalek Rigi was arrested by Iranian intelligence forces in February 2010 and executed in June for 79 counts of crimes, including armed robbery, bombing operations and armed attacks on police and civilians.
Rigi had stated in his confessions that he had dealings with the US government and was promised unlimited funds and resources for "waging an insurgency" in Iran.
"The recent bombing in Chabahar ... removed the veil of hypocrisy from the face of those who claim to be the advocates of human rights," Rezaei concluded.
Iran says the perpetrators behind the Chabahar terrorist attack were trained and equipped by foreign elements beyond the country's eastern borders in Pakistan.