Condemning the March 22 terror attack on Brussels airport, Prime Minister Narendra Modi on Wednesday said he wanted to expedite the negotiations on an extradition treaty and also a treaty on exchange of sentenced prisoners with Belgium."As part of our efforts to respond to this common challenge (terrorism) we could resume discussions on a mutual legal assistance treaty. Negotiations on extradition treaty and a treaty on exchange of sentenced prisoners could be concluded expeditiously," the prime minister said."The whole of India stands in full support and solidarity with the Belgian people," he said.More than 30 people were killed in twin explosions at Zaventem airport and one at the metro station in the Belgian capital on March 22.