UDHAGAMANDALAM: The Nilgiris has tightened security at all the 16 check posts in the district, where e-pass has been made mandatory for entry. A team comprising police, health and revenue officials are deputed at all the check posts. Police said the vehicles without e-pass were being sent back. “The number of vehicles entering the district has drastically come down since the introduction of e-registration system,” said a police source. At least 10,000 vehicles used to enter the district in a week during the past month. At least 60% of them was private vehicles, said Nilgiris collector J Innocent Divya. “As the e-pass system has come into force, we are scrutinizing all the applications. Passes will be granted only for emergency cases and on medical grounds,” she said.