His characterisation is dissimilar from the one he played in his debut-making venture Mast.
Shivdasani was selected as the Farex baby (Baby food brand) at age 14 months and from that point on he appeared in many TV commercials.He made his Bollywood debut as a child actor in Mr.It is also seen that he has also been a producer and also a perfect and top most model at his times. India and then later on he was starred in that of the Ram Gopal Varma’s film named as Mast.He is too the winner of the Zee Cine Award for Best Male Debut.Shivdasani's first two releases of 2004 were Suno Sasurjee opposite Ameesha Patel, and Muskaan opposite Gracy Singh. His third release of that year was Indra Kumar's comedy film Masti, in which he starred opposite Vivek Oberoi, Ritesh Deshmukh, Amrita Rao, Genelia D'Souza, Tara Sharma, Lara Dutta and Ajay Devgan. His last release of that year Shukriya: Till Death Do Us Apart opposite Anupam Kher and Shriya Saran, which failed at the box office.
In 2005, Shivdasani's films Mr Ya Miss opposite Antara Mali and Koi Aap Sa opposite Natassha flopped at the box office. Shivdasani found some success with multi-starrer films in 20.Shivdasani's performance was applauded by Taran Adarsh and considered to be better than the other two heroes.Taran Adarsh wrote "Aftab plays to the gallery and gives a good account of himself.Shivdasani continued appearing in commercials till the age of 19 when he was offered a lead role in director Ram Gopal Varma's Mast opposite Urmila Matondkar while still studying at H. Shivdasani played a negative role and shot to instant fame with his portrayal of Shekhar Saxena, a well-known journalist, who murders his wife.His performance in the film earned him a nomination for the Filmfare Best Villain Award and a Zee Cine Award for Best Actor in a Negative Role.Aftab has an edge over the other two heroes because his character is mass appealing.