A short video has gone viral and netizens have reacted with surprise when a 'strange animal' could be seen strolling in the Rashtrapati Bhavan when the oath-taking ceremony of PM Narendra Modi and his ministers was taking place on Sunday.

The grand ceremony was attended by nearly 8,000 guests which included foreign dignitaries, Indian politicians, and showbiz personalities, among others.

In the short video clip, an unrecognized animal could be seen walking in the corridor of the iconic building.

The animal was spotted when Madhya Pradesh MP Durgadas Uikey was taking oath as an Indian minister.

The world of internet started buzzing over the viral clip with netizens guessing which animal could have been seen in the video.

There were other internet users who claimed the video was doctored.

One user said: "It is not big cat. Even from such a distant view, it seems big. The way it works – it is one of the big cats, something like a tiger or a leopard. Or a lioness. If this is not an edited video, it's quite weird."

"Wow, what a wonderful catch, if not doctored. It is a cat!" another said.

"A big well fed cat," said another internet user.

In a grand ceremony held in India's iconic Rashtrapati Bhavan in New Delhi, which was attended by foreign dignitaries, business personalities and showbiz stars, Indian Prime Minister Narendra Modi took oath on Sunday evening, creating a historic moment in the country since he became the first non-Congress leader to return to power for a third term.

In a rare event in Indian politics, former Indian Prime Minister Jawaharlal Nehru had previously achieved it.