The 33-year-old star recently won the 'Best Actress' National Award for her performance in The Dirty Picture.
Speaking to Mid Day at an event, she said: "I am feeling very good. Actually, I am speechless to tell how wonderful and happy I am feeling.
"I always thought of receiving at least one National Award in my career. I am just seven years old in the industry and I already have a National Award to my credit.
"As I said, I have got much more than I had expected. I am feeling very content."
Balan made her entry into Bollywood in 2005 with Parineeta, receiving the 'Best Female Debut' Filmfare award for her role as Lolita.
There have been rave reviews for the actress's latest release Kahaani, in which Balan plays a pregnant woman in search of her missing husband.
Watch the trailer for Kahaani below: