New Delhi, Sept. 11 -- As India gears up to host the 18th BRICS Summit in New Delhi from 12-13 September, the national capital is witnessing heightened security arrangements, with several traffic diversions and delays announced across the city. Commuters are also likely to face changes and delays in train services, while flight operations and airport connectivity could also be affected due to the movement of visiting world leaders.

The Airports Authority of India (AAI) on Thursday notified airspace restrictions around New Delhi ahead of the summit and restricted the entry of non-scheduled flights from 7 am to 11 pm between 11 September and 13 September, ANI reported, citing sources.

According to the report, the special security measures...