The blood and urine samples of the 109 were sent for chemical analysis to Kalina Forensic Sciences Laboratory shortly after they were rounded up from the late night party on October 5.

The results were handed over to the police by the Kalina FSL on Tuesday afternoon.

Of the 109 who have tested positive, seven were peddlers, one a disc jockey while six other were organisers.

These 15 face prosecution under Sections 20 to 29 and 8(c) of the Narcotics Drugs and Psychotropic Substances (NDPS) Act, and can even be imprisoned for up to six months if found guilty.

In the past, first-time offenders booked under the NDPS Act for consumption were often released on bail once they volunteered to go to a rehabilitation centre to get over their addiction.

Police said two of the revelers charged with consumption were arrested for similar offence in rave parties in Pune and Bhayander. An Israeli reveler, DJ Ben Shimon (27), is due to be deported as he was performing in the city while on a visit on a tourist visa.

While Rahul Karmakar (24) and Anuradha Sanyal (20), the two who are said to be the kingpin among the peddlers, are in police custody, all their accomplices are still at large.

Karmakar was in fact arrested 15 days before the rave party but was let off on bail since he had a very small amount of drugs on him and was hence charged as a consumer.

The other peddlers are Sameer Vasantji (32), Rajesh Talvar (37), Velan Brito (19), Salil Kothari (22) and Romik Roy (25).

Among the organisers who are out on bail are — Yunus Shaikh (26), Ilyas  Shaikh (26), Nikesh Davane (20), Nilroy Gonsalves (48) and Stanley Fernandes (41).

“The law will view the revelers as victims of the peddlers under Section 64(a) of the NPDS Act, which says that an addict can be exempt from charges if he agrees to go on a de-addiction programme at a certified rehabilitation centre once in his life-time,” said DCP V Nangre-Patil, who had led the ANC team during the raid.

“We will produce them in court and will inform them in advance so that they can apply for bail. However, the two revelers who were also present at the Pune and Bhayander rave parties will definitely have to go to jail,” he added.

The police had also recovered 249 grams of charas, 88 Ecstasy tablets, 8.5ml LSD and 13 grams of ganja during the raid last month.

“The drugs came from Goa and Indore where we recently nabbed a consignment of Pseudo Ephedrine, a raw material used in LSD. It was being smuggled from Bhavanimandi in MP, where it is produced for medicinal purposes,” Nagre-Patil added.