In what is widely perceived as a significant goodwill move, Asif Ali Zardari, the president of Pakistan, paid a one-day trip to India on Sunday to discuss a wide range of issues with Indian Prime Minister Manmohan Singh.

Zardari's visit, though a private one, was the first visit to India by Pakistan's head of state since 2005, and is the latest sign of improving relations between the two former archrivals.

His trip was more than just symbolic, as Zardari invited Singh to visit Pakistan, and the Indian prime minister accepted the invitation. Frequent exchanges at high-levels will help build the mutual trust that is desperately needed to overcome the territorial and trade disputes that keep souring their relations.