Srinagar, Aug 15: The 80th Independence Day celebrations across Jammu and Kashmir passed off peacefully on Saturday under a tight multi-layered security grid, with no untoward incidents reported from any venue, officials said. Chief Minister Omar Abdullah hoisted the national flag and took the salute at the main J&K-level function at Bakshi Stadium in Srinagar, where men, women, and children participated in the parade and cultural programmes. Si…