The arrest of Jundallah leader Abdolmalek Rigi on Tuesday should have a positive impact on Iran-Pakistan relations. The terrorist leader and his deputy were arrested by Iranian security forces when a Bishkek-bound flight was diverted to Iran to catch a man whose organisation was responsible for a deadly terrorist attack last October that killed 35 civilians, besides seven revolutionary guards.

While Tehran never really joined the 'do more' chorus to pressure Islamabad for action against the plethora of banned — and not banned — militant outfits in this country, the Iranian government had serious reservations about the efficacy of Pakistan's policy, especially with regard to the anti-Iran terrorists operating close to its border in Pakistani Balochistan. On a visit to this country following last October's crime, Iranian Interior Minister Mostafa Mohammad Najjar reportedly provided Islamabad with proof of Jundallah's activities here and its use of Pakistani soil for acts of terrorism against his country.

For its part, Islamabad was vocal in denying that Rigi was ever based in Pakistan. But the ease with which militants of various nationalities have operated in this country for years has given a hollow ring to official protestations. Look at the most recent example Mullah Abdul Ghani Baradar, one of the Afghan Taliban's top commanders, was arrested earlier this month in Karachi. He reportedly lived in Pakistan for several years and seemingly enjoyed the freedom to direct Taliban operations inside Afghanistan.

Many people have aired suspicions that the so-called Quetta Shura leadership has started moving to the port city now. Against this backdrop, Jundallah's claim that Pakistani intelligence helped in Rigi's arrest should serve to remove some misunderstandings between Tehran and Islamabad. Additionally, along with Mullah Baradar's arrest it may also mark a dramatically different, and welcome, approach by the Pakistani security set-up.