Hyderabad/Thiruvananthapuram, Jan 25

Popular Malayalam film actress Kalpana passed away on Monday, film director Sibi Malayil said.

She is believed to have suffered a cardiac arrest.

The 50-year-old actress had acted in more than 300 films and was in Hyderabad to attend a private function.

She had bagged the National Award for the Best Supporting Actress for her performance in "Thanichalla Njan".

Popular actress Urvashi and Kalaranjini are her siblings.