At least 17 people were killed and many more injured in a stampede at India's Maha Kumbh festival, the world's largest religious gathering, a doctor at a government hospital said, as tens of thousands of pilgrims rushed to dip in sacred river waters during the Hindu event.

At least seven people were killed and around 10 injured in a pre-dawn stampede at the Maha Kumbh Mela in the northern Indian city of Prayagraj on Wednesday, an official said, the most auspicious day of the six-week Great Pitcher Festival.