Daltonganj: A tourist couple from Ranchi on Monday sighted a tiger in the Betla National Park, forest officials here said. “A tourist couple from Ranchi, Mehtab Ahmad and Zeynab Falak, spotted the tiger during daytime safari. It was seen basking in a bush near a water body,” Betla forest range officer Umesh Dubey said. The official said the tiger had moved on by the time they reached the site.