Sharing one of her heart-warming experiences, the 73-year-old said: "Once I was going through the streets of Kolkata and it started to rain very heavily.
I saw a lady, who had covered herself and her kids in a shawl. She saw me and gestured that I join her, and the next moment we were sharing a shawl together. This was a learning experience. She taught me how to share despite language barriers."
Ullmann is here to showcase her latest film "Liv and Ingmar" at the ongoing 13th International Indian Film Academy (IIFA) awards, organised by Wizcraft International Entertainment.
Based on her life story, the film is an affectionate yet truthful account of her 42-year-long journey and her long association with filmmaker Ingmar Bergman.
The actress, who was wearing an India-style stole over a long kurta that she teamed with a pair of trousers, said she has already become half-Indian.
"I have already become half-Indian in this attire and will become a complete Indian in the next few days," she said.
IFA, a three-day cine extravaganza, kicked off Thursday. It will feature fashion shows and a musical night and the celebration will be concluded with an award ceremony.