New Delhi: Delhi Police today detained for questioning a TV channel reporter who conducted a sting operation on a government school teacher in an attempt to show that she was running a prostitution racket.

"Prakash Singh, the television reporter of Live India, was asked to join investigation by the police but he refused. He was ultimately picked up for investigation today," a senior police officer told PTI. His detention comes a day after police arrested a girl who appeared in the TV sting operation posing as a student. She was arrested on charges of "criminal conspiracy, cheating and fabricating false evidence".

The sting operation had led to violence in the area and the lady teacher, Uma Khurana, was dismissed from service. Later, One Virender Arora was arrested on September 2 for allegedly "supplying the girl to Khurana". Both Khurana and Arora are now in judicial custody.

The channel had aired the sting operation on August 30 which purportedly showed the woman telling the reporter that Khurana had allegedly filmed her in "compromising position" and had forced her into prostitution.