The actress is famed for her small measurements, which resulted in the creation of a 'size zero' low-fat pizza by an Indian pizza chain last month.
In an interview with The Times of India, the 29-year-old actress said: "My size zero is what got the attention of an international clothes manufacturer. I will be launching a clothes line soon.
"I know that youngsters think of me as a fashion icon because of my current size.
"And, though I’m occasionally tempted to put on a couple of kilos, I personally feel that for the kind of high-fashion wardrobe I wore in Kambakkht Ishq, my current shape is right."
Bollywood dress designer Shahid Aamir told TOI that younger Indian actresses are much slimmer than screen heroines of the past such as Sridevi and Rekha.
He claimed that dressing older actresses like Kajol and Manisha Koirala was harder because of the nature of fashionable clothing now.
"The clothes we put on these girls would ideally have suited women whose stomachs you can roll a rolling pin on," he said.
"In other words - both Manisha and Kajol were plump. Now, whether it is Kareena, Priyanka or Kangna, these girls have dream bodies."