"Except that, don't you have any other issue? Is this the only news you have?" Siddaramaiah snapped back at reporters who sought to know the latest on the case that has evoked public outrage and drawn criticism of his government for not acting swiftly.
The girl was allegedly raped on July 2 at high-profile Vibgyor High School in Bangalore, while the complaint was lodged with the police on July 14.
Amid growing public anger against the police, the first arrest came on July 20 -- of skating instructor Mustafa, who hails from Bihar.
On Friday last, Siddaramaiah found himself in an embarrassing spot as video footage on TV channels showed him apparently dozing off during a debate on sexual offences against women in the assembly.
Siddaramaiah was seen in the video grab tilting his head in the front with eyes closed as the House was immersed in a debate with the opposition BJP going hammer and tongs against the government over a spate of recent sexual offences and gunning for the resignation of Home Minister K J George.
The video shot was aired by TV channels but the Chief Minister had said he was not napping and was "very much attentive" listening to the debate.
Siddaramaiah's government has come under attack from the opposition parties over the Vibgyor school incident and alleged rape of a 22-year old woman in a car and of a 16-year old nun at a seminary in recent days.
Asked about invoking the Goonda Act in sexual offence cases, he said, "Wherever the Goonda Act is to be invoked, it will be invoked."
About BJP going on protest against government's "failure" to check the increasing incidents of rape in the state, Siddaramaiah said, "The main opposition party is politicising the issue."
Bangalore: Paedophile instructor had child rape videos on laptop
B'lore rape: Instructor was sacked from earlier school for 'abuse'
6-yr-old raped in Bangalore school, parents protest
Goonda Act to be invoked against B'lore child rape accused
ISL Players' Draft: Subrata Paul, Nabi to play for Mumbai