Experts say India is mounting the most elaborate security operation in its history US President Barack Obama will be greeted with unprecedented security measures when he lands in Delhi for a three-day visit on Sunday.

Thousands of security personnel have been deployed, many roads are blocked to the public, roadblocks have been set up and piles of sandbags have come up at several street corners. Security experts say this is undoubtedly the most elaborate security arrangement India has ever made.

1. 15,000 security cameras
An Indian security personnel pulls a barricade to block the road in front of India Gate as it rains in New Delhi January 22, 2015. According to reports, roughly 15,000 security cameras have being installed in the capital for the Obama visit.

Some 165 cameras are being installed just on one thoroughfare – Rajpath, or King’s Avenue, from where the US president will watch the military parade – reports NDTV.

It says American security personnel will be in the control rooms, watching the footage with Indian officials. The road has been out of bounds for almost a week, with large number of troops guarding every inch of it.

2. 438 rooms
The Maurya Sheraton, one of Delhi’s top hotels, is a favourite with American presidents – Bill Clinton and George W Bush stayed there and so did President Obama on his last visit in 2010.

According to reports, all the 438 rooms of the hotel have been booked for President Obama and his entourage and during his three-day visit starting Sunday, no guests will be allowed into the hotel or its restaurants.

The hotel has set up a team of staff who will be looking after the president and the delegates.

Reports say the president’s advance security team has arrived at the hotel and is going around checking door handles, locks and air-conditioning ducts to ensure there are no secret listening device or cameras.

3. The Beast

4. Extended no-fly zone

5. The dog squad

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