In the aftermath of events linked to Kashmir and the forthcoming Independence Day festivities, authorities said on Monday, a ' high warning ' was sounded in the Delhi metro network.

A new advisory was issued on an current one to guarantee that there is no untoward incident in the mass-rapid rail network running across the National Capital Region, safety representatives said.    At many stations, the authorities said, commuters will have to go through extra checking by CISF staff.

Additional CISF troops, counter-terrorism reaction teams, and security gadgets were induced to ensure that passengers face the least trouble while they get frisked and that any emergency situation is reacted too quickly, officials said.