Mangal (Shatrughan Sinha) is an escaped convict who finds shelter at the coal mine. KAALA PATTHAR is inspired by a true mining tragedy in Bihar.

What stands out in Kaala Patthar is the gallery of working women in the cast. This was at a time when most commercial movies had their female leads abducted by the villain and saved by the hero.

There's more to work than life.