Srinagar, Jan. 22 -- Srinagar Kashmir's annual saffron yield has crossed 13 metric tonnes for the first time in a decade with officials crediting a scheme launched in 2010 to boost its cultivation and introduction of sprinkle irrigation for the increase in the production. Saffron is considered to be the world's most expensive spice and is known as the king of spices. It fetches between Rs 1.5 lakh and Rs 2.5 lakh a kilogram....