By Shivam Patel and Fayaz Bukhari SRINAGAR, India (Reuters) -Indian Prime Minister Narendra Modi vowed on Thursday to pursue, track and punish terrorists and their backers in a strong reaction to a deadly militant attack on tourists in Kashmir,

Tensions between arch rivals India and Pakistan were high on Thursday as New Delhi mounted a diplomatic offensive against Islamabad, blaming it for a deadly attack that killed 26 people, mostly tourists,

Relations between India and Pakistan are cratering following a deadly attack in the disputed Himalayan region of Jammu and Kashmir that left more than two dozen tourists dead, raising fears of military escalation between the nuclear-armed rivals.