ONE of the world’s biggest film stars has been spotted casually strolling through Glasgow.

Legendary Bollywood actor Amitabh Bachchan is in the city for around a week to shoot a new blockbuster.

As previously reported by the Evening Times, Indian cinema’s most prominent and well-known face sent his 35 million Twitter followers into a spin this week after revealing upcoming thriller Badla (Revenge) has started shooting in Scotland’s biggest city.

READ MORE: Legendary Bollywood actor coming to Glasgow to shoot new blockbuster

A superfan of the 75-year-old tracked him down walking with an entourage along South Portland Street Suspension Bridge at Broomielaw.

Dressed in a suit in his trademark glasses, the fan called out to him as he walked past.

Early on Saturday morning, Mr Bachchan told his Twitter followers: “Whoooaahhh !! 9.5 hrs on the road from London to Glasgow .. starting shoot for ‘BADLA’.”

He also wrote about his first day in Glasgow on his blog where he posted images of himself on set and commented on the infamous city weather.

He said: “The ‘Badla’ first day with all the confusion and uncertainty began today. Out on the streets of this city of Glasgow, cloudy, drizzle, then sun. The Saturday crowds of the young and free on and about on the streets and clubs - and moi, negotiating the ‘selfie’ seekers with enough abandon and consent, did not realise there are sufficient migrants from way back home inhabiting space and comment on the premises where we work. Most, pleasant and surprised, some a little abrupt and angular, because of the preventive security, but still filled with laughter and joy. Good to know.”

The only thing that has been revealed about the film’s plot is that it focuses on “an investigation into an accidental death.” The film is also believe to be based on a Spanish story.

Mr Bachchan has appeared in close to 200 Indian films in a career spanning almost five decades.

More recently, he featured in Hollywood hit The Great Gatsby in 2013 in which he played non-Indian, Jewish character, Meyer Wolfsheim.