Smita, known for her powerful performances in films like "Bhumika" and "Arth", died in 1986 following childbirth complications. She was 31.
The actor celebrated Smita's 58th birth anniversary on Thursday with an NGO.
"I don't know what she (Smita Patil) was and how she was, but I have heard a lot about her from people. She was a wonderful person, very good at heart," Prateik said.
The actor cut a cake in her memory and was happy.
"I am trying to be like her by coming here (at the NGO) and meeting the kids as she used to. I am just trying to be as nice as a person," the 26-year-old said.
"These kind of things make people happy and somewhere these make you happy as well," he added.
When it comes to inspiration, Prateik, son of Smita and actor Raj Babbar, looks up to his parents.
"I am proud to be their child. It is very inspiring for me. I am inspired by my mom and dad," he added.