On 10 November 1921 , when the uprising was near its end , almost 90 detained Muslim rebels were sent Sending by train from Tirur to the Central Prison in Podanur ( near Coimbatore district ) .

Historian Sumit Sarkar referred to it as the `` Black Hole of Podanur '' .

One of the most noteworthy events during the suppression later came to be known as the `` Wagon tragedy Catastrophe '' , in which 67 out of a total of 90 Mappila prisoners destined for the Central Prison in Podanur suffocated Death to death in a closed railway goods wagon .