The whole area is a no-fly zone and airspace usage around the area is highly restricted and monitored. Over the years, its security has gradually been increased. A bulletproof glass-tube passage was built in 2003, connecting Bungalow 3, at the Prime Minister’s residence, to "Panchvati" or 7 LKM, where the Prime Minister meets people and delegations and holds official meetings. A concrete wall was added on the periphery, separating the house from the main road, to render any truck bomb or a car bomb attack ineffective. However, the residence is surrounded by various high rise building and public structures, including Samrat Hotel, Ashoka Hotel, and state guesthouses on one side, to the Delhi Gymkhana Club (DCG) and Delhi Race Course which lies on the other. Accordingly, plans for a helipad within the complex were mooted for several years. By 2004, the Intelligence Bureau (IB) took over most of the rooms of Samrat Hotel overlooking the residence and watchtowers were erected inside Delhi Gymkhana. The Delhi Gymkhana can be accessed only via Safdarjung Road. The residence has a power substation, and doctors and nurses from the All India Institute of Medical Sciences are on duty round the clock. There are several ambulances on standby, one of which always accompanies the prime minister's motorcade. The civic officials ensure that there are no traffic bottlenecks on Kemal Atatürk Marg that runs outside the bungalows.