Why did Bihar revise the death toll? health min explains

The Bihar health department on Wednesday massively revised the Covid-19 death toll, adding about 72 per cent more fatalities, triggering a row over alleged irregularities in death figures in the state. Fresh figures of Bihar's death toll due to the virus has reached 9,429. But why did Bihar revise the death toll? Here's what state health minster Mangal Pandey says about this.