In the first six months of this year, citizens raised about 40,000 disputes over traffic e-challans of which nearly 10 per cent were found to be genuine. The scrutiny of the claims also led to the discovery of more than 200 vehicles that are using fake number plates. So far, the department has registered cases against 17 people over bogus registration numbers.

Motorists are sent e-challans for flouting traffic rules, though the automated process has some margin of error, admit officials. Until June 30 of this month, officials received 39,950 applications claiming that wrong e-challans had been sent.