Two of the accused trio, including the arrested SI, even opened fire on the police team which had gone to apprehend them in connection with the case.
According to police, one Sanjay Kumar Thakur, who runs a coaching centre and an internet ticket booking centre at Jaitpur in the Badarpur area, yesterday complained to Delhi Police Crime Branch that three policemen had visited him on Monday saying they were Crime Branch officers.
"They (the trio) told the complainant that printing of railway tickets was illegal and seized the hard disk of his computer, registers, etc. They then took him to Nehru Place in a private vehicle and summoned his father.
"Thereafter, they demanded Rs 5 lakh for their release but later settled for Rs 1.5 lakh. But, despite the payment of that amount, they did not return Thakur's hard disk and documents," said Additional Commissioner of Police (Crime), Ravindra Yadav.
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"Soon after the complaint was filed, a raiding team went to Nehru Place at about 6.30 P.M. Where Tomar was spotted inside a private vehicle.
"(But) when he was asked to stop, he opened fire on the raiding party and fled from the spot in his car," said Yadav.
The police team then went to apprehend SI Nagender but, as they were talking to him, the accused pushed managed to push aside an inspector and took to his heels.
A separate case has been registered against Nagender and Tomar for opening fire on police personnel.
Efforts are on to nab the absconding Tomar and constable Kaushal, police said.