22-year-old Vishwanath fired a total of 23 rounds but no casualty has been reported.

The quiet environs of National Institute of Mental Health and Neurosciences (NIMHANS) stood witness to high drama on Sunday evening, when a 22-year-old prisoner under-treatment, snatched a gun from a police guard and opened indiscriminate fire on the campus.

The gunman, identified as Vishwanath, has been shot at and neutralised by the Garuda Force (Anti-Terror Squad). Police officials confirmed that no one was injured in the incident. He has been taken to the intensive care unit (ICU) of NIMHANS and is currently undergoing surgery at NIMHANS.

At about 3 p.m. on Sunday, Vishwanath snatched the gunman from the guard and opened indiscriminate firing. Police officials managed to chase him to an empty room from where he fired ten more shots in succession.

Though he was warned several times, Vishwanath did not budge and was finally shot at and neutralised. He was immediately rushed to ICU.

Talking to mediapersons, Commissioner N.S. Megharik, who also rushed to the spot on hearing about the incident, said that Vishwanath was in possession of a .303 rifle and access to 100 bullets, of which he fired 23 rounds.

An under treatment prisoner at NIMHANS in possession of weapons firing randomly. Situation under control. No casualties. Commandos in charge — Pratap Reddy, IPS (@AddlCPWest) >August 16, 2015

Doctor manages to walk out after over an hour. >Read more .

Garuda crack-team took over

A crack team of commandoes from the Garuda (Anti-Terror Squad) Force have been rushed to the spot and have taken over the premises. The commandoes have surrounded the building where the gunman is holed up and are trying to neutralise him.

Where did it happening?

The criminal ward is a square area on the ground floor of pavilion one of the psychiatry building with a central courtyard. To the left and the right are the closed male wards, where there are 60 patients in all as of now.

From the spot:

Vishwanath snatched the rifle from the police guard at 3 p.m. on Sunday afternoon

Police said that Vishwanath had an 303 SLR rifle and access to 100 bullets, of which he fired 23 rounds

Vishwanath is currently being taken to NIMHANS casualty ward

Vishwanath has fired a total of 23 rounds, say Police

Police Commissioner Megharik re-confirms that Vishwanath is 22-year-old and not 27-year-old

Police officials talk to mediapersons

>Vishwanath shot at, critical and neutralised

At least 10 more shots fired in quick succession. Shooter unknown.

Police officials are trying to get hold of Vishwanath alive

Police have surrounded the area

Police are currently using the public announcement system to pursue Vishwanath to surrender

Vishwanath is 27-years-old

Vishwanath reportedly grabbed a rifle from a guard in the afternoon and is currently holed up in a room with the gun

Vishwanath is seen holding the rifle as officials warn him

Entrance fortified with police blocking the entry and exit

"No hostage situation or deaths reported yet," says Police