"We are used to keeping mum about injustice, be it in the office or public transport. We ignore the injustice faced by women," she said.
"If you won't speak up today, you will never be able speak. You are stronger than you think you are. It is time to speak up," Sonakshi said in a statement.
The 29-year-old "Lootera" actress will soon be seen playing a tough, feisty girl in director AR Murugadoss' "Akira", which will hit the theatres on September 2.