Delhi Police on Thursday said they arrested two persons with 'ecstasy' pills, which they claim is recovered for the first time in Delhi, and cocaine.

Raj Kumar Gupta, 31, and Pradeep Singh, 25, were picked up in Dwarka area in south-west Delhi on Wednesday night on the basis of specific information, Assistant Commissioner of Police (Narcotics Branch) Meher Singh said.

Police seized 43 tablets of 'ecstasy' and 10 grammes of cocaine from them.

This was the first time that 'ecstasy' was recovered in Delhi, they said.

But the arrest ran into controversy after it emerged that one of the accused Raj Kumar, brother of a notorious pimp murdered two years ago, had a policemen designated as his personal security officer who was absent at the time of arrest.

Both drugs are allegedly in high demand at clubs and farmhouse parties in Delhi. Raj is the younger brother of Sanjay Gupta, who was one of the city's top pimps till he was murdered in 2003.

Pradeep was his associate. The police said it was likely that Raj was also running a prostitution racket and was supplying the drugs along with women to customers.

As Raj was a witness in Sanjay's murder case and apprehended threat to his life, he had been provided with a constable as PSO.