Greater Noida, Aug. 26 -- Four teenagers riding a motorbike without helmets died allegedly after a collision with a car in Greater Noida's Ecotech 3 on Monday, police said, adding that the car's driver has been arrested. Police identified the deceased as Lavkush Rana,15; Sumit, 16; Rihan, 17; and Monu, 19 (all three identified by first names). All four lived in Kulesara village in Ecotech 3, Greater Noida. The incident took place around 12.15 pm, when the teenagers were riding a bike on the single-lane Pushta road in Kulesara, and collided head-on with a Maruti Suzuki WagonR coming from the opposite direction. "The collision was so severe that it flung all four in different directions into the bushes along the road," said Ecotech 3 SHO Ajay...