Topchanchi Topchanchi: Two youths riding a bike were seriously injured after being hit by a speeding vehicle near Chalkari Chowk in Topchanchi on Tuesday afternoon. With the help of local people, both were taken to SNMMCH, Dhanbad for treatment. After first aid, the doctors seeing their critical condition referred them to RIMS, Ranchi. The name of one of the injured is Chandan Mahato. He is a resident of Yogidih of Dumri block. While the other one has not been identified. According to the information received, both the youths were going towards Dumri on a bike, when some vehicle hit them hard near Chalkari Chowk.