Youngsters who "do drugs" are also catching up with the "etiquettes" of rave parties. So if the DJ is belting out heavy metal numbers, it's a cue for them to order ecstasy. But if he is playing blues, it's time for hash.
This is the latest trend at rave parties, pubs and discotheques in urban India, say officials of the Narcotics Control Bureau (NCB) who are keeping a close tab on such parties.
Drug parties become a rage from September, which heralds the festival season in the country, and the consumption of drugs touches an all-time high.
Drugs are served just like the exotic cuisine and partygoers can get their "high" depending on the music that sets the mood for the party.
"It is like a buffet of drugs. Partygoers can choose their drug," NCB director A. Shankar Rao told IANS.
"We know that such parties are being organised in large numbers in the capital. But we do not have much information on people who run the drug racket," he said.
Since ecstasy, heroin and cocaine are more aggressive drugs, they are consumed when rock or retro music is being played at the party. Marijuana and hash are taken when the DJ plays country music or jazz.
According to Rao, "Ecstasy, heroin, cocaine, hash, LSD, codeine, Ice, ephedrine and marijuana are all available at parties. Youngsters can choose the drug on the basis of the music that is being played.
"These drugs are called downers because they have a subdued effect on the party-goers."
Sometimes youngsters have a cocktail of drugs to keep pace with the changing music. "Mixing of drugs can be very dangerous. We fear this trend will become more popular in the festival season," said Rao.
Ashwini Kumar, a specialist in anti-drug treatment for 20 years, said: "If the authorities do not take action, the trend of hosting drug parties will increase.
"After all, a section of the society believes that there is nothing wrong in consuming drugs. This encourages people to host and attend such parties."
Huge quantities of ecstasy tablets have also been seized in the capital. In the past 20 months, agencies have seized 216 kg of cocaine, 247 kg of heroin, 100 kg of ephedrine and 4,400 kg of Mandrax in the country.
"The seizure of synthetic drugs like ephedrine and Mandrax is a cause of concern because these drugs can either be taken as tablets or can be mixed with cocaine and heroin to make it more potent," said Rao.
Some of the discotheques and pubs that have mushroomed in satellite towns near the capital are popular haunts for many youngsters.
"Since these areas are outside our jurisdiction, it is difficult for us to carry out raids there," said A.S. Cheema, deputy commissioner of police.
International drug cartels are also eyeing India with its large young population. "Drug consumers are mostly young people, so India is emerging as a major market," said Rao.
"The drug seizures indicate that there is an organised trade that is trying to establish base in India with Delhi and Mumbai as transit points," Rao added.