A 22-year-old Sai Teja, from Hyderabad who passed 10th class only, has worked wonderfully. To everyone's surprise, he has invented a new smart system for vehicles to avoid road accidents. Spending Rs 2500 and taking help from the Internet, Sai Teja has designed the smart concept. Now Sai Teja has become the talk of the town. He has invented a detector which can sense whether the driver has consumed alcohol or not. Mega hero Sai Dharam Tej has hailed Sai Teja's invention on twitter.