India has summoned the top Pakistani diplomat to New Delhi, local media reported on Thursday, a day after it announced measures to downgrade ties with Islamabad as relations between the nuclear-armed rivals plummeted following a deadly militant attack in Kashmir. A day after six-decade-militants killed 26 men at a tourist destination in Kashmir in the worst attacks in the country in nearly two decades, Indian Foreign Secretary Vikram Misri said there was cross-border involvement in the attack and New Delhi would suspend a six-decade-old river-sharing treaty as well as close the only land crossing between the neighbors.(Reuters)