Mysuru:  A journalist, his wife and son sustained serious injured when two cars collided head-on near Kalenahalli on Mysuru-Bengaluru highway in Mandya taluk yesterday. The injured are journalist Nesara Kadanakuppe, his wife Megha and son Akshara. They were proceeding on the highway towards Mysuru, when another car proceeding towards Bengaluru, hit the median and collided…