Urban transport

"We are offering consumers adapter-based lithium battery chargers. In any 16 ampere socket — whether at home or office — all you need to do is pull out the battery from your scooter and put it on for charging."

Ashwani Kumar Upadhyaya, a 47-year-old Indian Railways engineer, recently won an award for his innovative idea of developing caterpillar trains -- a network of lightweight, elevated train coaches that will run at speeds up to 100 km/hr.