There is no widely known, major mainstream Indian film actress named (e.g., no Bollywood, Tollywood, or Kollywood star uses that exact professional moniker). The name strongly suggests a confusion between two different figures, or a character name.
This is an interesting request, but it requires a crucial clarification to provide an accurate report. Indian Actress Sapna Sexy Dance 3gp
Low probability this is what you meant. Possibility 3: You mean a Regional Actress (South Indian) Named "Sapna" There are actresses named Sapna in Kannada, Telugu, and Malayalam cinema (e.g., Sapna Raj – known for item numbers and dance songs, sometimes called "Sapna Dance" informally by fans). There is no widely known, major mainstream Indian
She performed a famous dance number called "Dance Dance" in the 1987 film Dance Dance . People often refer to her as "Sapna from Dance Dance ." Low probability this is what you meant