Bengaluru, Oct. 11 -- Union Minister HD Kumaraswamy on Sunday intensified his criticism of Karnataka Chief Minister DK Shivakumar over the alleged sting operation controversy, questioning the government's handling of the matter and demanding an investigation into the claims.

Kumaraswamy said the issue could not be dismissed as a mere allegation and questioned the developments surrounding the reported sting operation over the past week.

"It is not an allegation. What are all the sequences from the last week going on regarding the sting operation? The Chief Minister has to spell out who the five ministers are," Kumaraswamy said.

The controversy erupted after Shivakumar reportedly cautioned Cabinet colleagues during a meeting about possib...