India, May 27 -- The Pahalgam massacre of innocent tourists from India and Nepal on April 22 and its aftermath have redefined India-Pakistan relations. While attacks in Jammu and Kashmir and elsewhere in India by Pakistan-sponsored terrorists have featured regularly, it is only in the past decade that the Union government has truly endeavoured to draw red lines.

Pakistan had committed in a joint statement in January 2004 to "not permit any territory under Pakistan's control to be used to support terrorism in any manner". Pakistan has consistently reneged on this and the bilateralism envisaged under the Simla Agreement and the Lahore Declaration.

The egregious attack by Pakistani terrorists at multiple locations in Mumbai in November 200...