New Delhi: The eight-city tour to promote his dream project 'RA.One' has left Shahrukh Khan tired and exhausted, but the emotional bond with the film and reaching out to his fans is keeping the superstar alive, energetic and kicking.

“I am extremely exhausted and tired. It is because I am not just promoting the film, I am also doing the post production of 'RA.One' at the same time. Even though I have private planes to travel and five star hotels to stay in but I have been working round the clock,” Shahrukh told reporters here on Thursday.

The 45-year-old actor was in the capital to facilitate real heroes of Delhi coming from different walks of life. 11-year-old kid Jatin Kathpal, who bravely fought with some thieves when he was alone at home, Kuldeep Singh, who lost his eyes while saving many lives during a bomb blast in Delhi, Pawan who saved people in a burning train and Ashok Randhawa who works for the benefit of terror victims, were among those honoured.

Though the star arrived an hour late at the unusual venue - Shivaji Stadium Airport Metro station, the enthusiasm and screams from the crowd, a 'Chamak Challo' jig by the superstar lit the boring grey and white structured walls of the station with colours of joy and happiness.Wearing a pair of jeans, a black T-shirt and a red stole around his neck, his hair was neatly tied in a ponytail and though his eyes looked tired, his body and energetic gestures overcame all that.

This mega-budget film is taking Shahrukh to cities he has never visited before, and very modestly the actor says all his promotional activities are targeted to inform the audience about this film.

“I am a small time actor who is struggling to make his audience like his movie. People don't know what they want till they see the film. So the idea of this activity is to inform people that there is a superhero film, so by the time they go to the cinema halls to watch the film, they are already aware what it is all about,” he said.

“The film comes straight from my heart and I believe in it. I have made this film because I wanted to, so why should I be scared of the outcome. In 20 years, you have given me status where I can think of spending money,” he added.

Directed by Anubhav Sinha, the film also has Kareena Kapoor and Arjun Rampal in the lead role. It is set for a Diwali release.

SRK takes Metro ride

Shahrukh Khan enjoyed a high-speed Metro ride on the Airport Express Line on Wednesday as part of the promotional campaign for his upcoming flick RA.One. He took the high-speed metro train from Aerocity Metro station and reached Shivaji Stadium at around 6: 30 pm.

Speaking on the occasion Shahrukh said, "Infrastructure wise Delhi has become a huge city, at par with international metros. Delhi's airport, Airport Metro line etc are extremely beautiful and modern." When asked how he used to commute in his early days in the Capital, he said, "I used to take a bicycle. In those days we did not have such advanced modes of transport."

The 23-km Delhi Airport Metro Express (DAME) line, with its high speed and swank stations, is emerging as a major attraction for the film and entertainment industry. Incidentally, filmmaker Mahesh Bhatt is planning to shoot parts of his upcoming film Jannat 2 on the Airport Express metro network.

"Ever since Reliance Metro Airport Express Line started in February 2011, requests for shooting movies and organising events have come aplenty. We are pleased that SRK chose the Airport Express line for the promotional campaign of RA.One," said Anil Gupta, President, Reliance Infrastructure Limited.