Pop star Daler Mehndi on Monday appeared before the police in Patiala after remaining elusive for almost 20 days.

The police questioned Mehndi for over five hours in the illegal human trafficking case. Heckling and booing by political activists and others marked Mehndi's arrival. The pop star demanded a CBI probe into the 'racket'.

Mehndi, who was granted an interim anticipatory bail for 10 days by the Delhi high court, which had also directed him to cooperate with the police in the investigations, himself drove to the Sadar Police station in his Mercedes after paying obeisance at the Gurudwara Dukh Niwaran Sahab.

A hysterical mob, including political activists, blocked the Punjabi singer's way, threw paint on his vehicle and raised slogans against him as he arrived at the station. It took him half-an-hour to wade through the crowd to get inside the police station.

Mehndi's questioning which commenced at around 11.15 am continued till 6.30 in the evening, police sources said. He furnished a surety of Rs 500,000 as directed by the high court for the interim bail.

Demanding a CBI probe, the pop star alleged that 'many big fish' were involved in the racket and he was being made a scapegoat.

"I am fulfilling the directions of the court. The CBI should investigate this case as it seems to have wider links. I am being deliberately framed in the case. Let the CBI probe into and find out the truth," he told reporters.

The singer along with his brother Shamsher, who is in judicial custody, and three others were booked on October 6 in a case of cheating and fraud on the complaint of one Bakshish Singh that he was not taken abroad even after having paid Rs 1.3 million out of the demanded Rs 1.5 million.