A source said that the police are seeking a five-day custody. Meanwhile, the mobile phones of both the accused have been sent for forensic analysis.
Congress MP Anjan Kumar Yadav's son Arvind Kumar Yadav and singer Rahul Sipligunj claimed that they were attending a friend's birthday party without revealing who the friend was.
Kiran Raju, son-in-law of former Union Minister and senior Congress leader Renuka Chowdhury has been named an accused in the case and efforts are on to take him into custody.
Following a tip-off that vehicles start lining up outside the hotel after midnight everyday, team members sneaked into the pub in the guise of customers to expose its illegal activities.
The recent drug bust in Banjara Hills has shown that mere presence at a venue that encourages drug abuse can land one in legal trouble, even if they were not consuming mind-altering substances.
Samples are yet to be collected from them and all the 148 persons who were in the pub would be summoned as part of the investigation.