Instructions have already been sent to Indian missions, airports and immigration authorities that the accreditation card to be issued by the games committee will be treated as a visa.

'Those who have the accreditation card do not need a separate visa,' he said.

By April 2010, there will be a new international airport in Delhi, which will be the second largest in the world and be able to handle 30,000 passengers, Pillai said.

The route from the airport to the venues will be also be under three-tier security surveillance with measures like security seals on all vehicles to prevent any possibility of car bombs.

Helicopters will be hovering in the sky for air surveillance throughout the games.

Asked if the security officials have looked into how to react to a Lahore-type attack on athletes, Pillai said: 'We have taken that scenario into account'. All venues will be sealed seven days before the games, he added.

There will be test runs of the security apparatus at certain venues during April and June 2010.

There will also be 2,000 close circuit television cameras (CCTV) in operation on Delhi roads, besides those inside the games venues.

'Delhi Police control room will be world class, with 30-40 large video screens monitoring all venues from the airport to the games village,' said Pillai.

Besides the actual event, the Queen's Baton relay will be flagged off from Buckingham Palace Oct 29, when the torch is handed over to President Pratibha Patil. After travelling through other Commonwealth nations, it will reach India through the Wagah Border June 25.

Within the country, the torch will travel through all states and union territories through a 100-day national tour.