What do you understand by ‘lead sentence’ in a newspaper report?

The ‘lead sentence’ is the first sentence in a hard news story, which is written in the ‘inverted pyramid style. The ‘lead sentence’ contains the main points of the story. It is usually a long sentence which answers the questions: Who did what, where, when, and why? And sometimes it also answers the question ‘how?’

Example: Superstar Amitabh Bachhan donated Rs 25 lakh to Children’s Cancer hospital in Patna at a ceremony held on Monday in order to motivate other movie stars to take up the cause of helping poor kids fight cancer.