Twenty persons were arrested from the pub during a raid when police personnel found women dressed in skimpy attire dancing with customers.
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.
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 latter, who is the son-in-law of senior Congress leader Renuka Chowdary, reportedly went abroad a couple of months back.
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.