Directed by Rensil D'Silva, "Ungli" stars Emraan Hashmi and Kangana Ranaut in the lead.
"I don't know whether to call it an item song or a promotional song, but yes, it's a very different thing that I am doing," Shraddha, who will team up with Emraan in the song, told IANS.
"Karan offered me the song and said: 'You have never been seen like this before. It's a very glamorous song.' So all that excited me and I said yes to it. The moment I heard the song, I was all the more excited as it's such a catchy song," she further added.
Titled "Dance Basanti", the song choreographed by Bosco-Caesar will go on air Tuesday.
When asked does the song have any link to Hema Malini's Basanti from "Sholay", she said: "I guess, it's definitely a take from original Basanti. It's a modern day twist. I can't compare myself with Hemaji's Basanti. She is the original legendary Basanti."