Humanitarian work

During her years in the film industry, Zinta has been involved with different charities,and has supported women's causes in India, for instance protesting against female infanticide. She has also participated in AIDS awareness drives and campaigns to clean up Mumbai.
In 2005, along with other Bollywood stars, Zinta performed at the HELP! Telethon Concert raising money for the victims of the 2004 Indian Ocean earthquake. The following year, as an ambassador of the Godfrey Phillips National Bravery Movement, Zinta attended a blood donation camp organised by the Rotary Club of Delhi and the Godfrey Phillips Awards. She lent her support to the cause of women's empowerment and promoted blood donation. She said, "Donating blood doesn't kill one but goes on to save somebody's life .... Once blood is donated it becomes universal and might be used by anyone in need, irrespective of community, caste or region. It binds people together.
In 2007, Zinta along with Rani Mukerji, donated Rs 250,000 of her winnings from Kaun Banega Crorepati to the Shimla District Red Cross Society in Himachal Pradesh.In January, Zinta visited Hisar, Haryana, where she spent a day at the army training base to boost the morale of the jawan troops. The visit was conducted for an NDTV show, Jai Jawan, on which entertainers and actors visit Indian troops. While there, she also met children with disabilities at a special school maintained by the army.In August, along with Mumbai-based artist Gurcharan Singh, Zinta painted for the cause of street children for the non-governmental organisation Khushi.In December, she joined the efforts of the United Nations Office on Drugs and Crime (UNODC) to curb human trafficking in India. She spoke on behalf of awareness against the practice, the need for protection and rehabilitation for those rescued from it, and punishment for perpetrators.