The Telangana Prohibition and Excise Department issued notices to some Tollywood actors, directors and producers under section 67 of the Narcotic Drugs and Psychotropic Substances Act asking them to appear before it next week to explain their alleged links with the arrested accused.
"We are not revealing their names ... They have been asked to appear before the SIT," a senior Excise official told PTI.
When asked about the grounds on which the notices were issued, the official said, "Some of the names came out during interrogation of the arrested accused and there were also some evidence against a few others."
Five of those arrested are B Tech graduates who held good positions in various MNCs.
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The officials had stumbled upon the Tollywood angle earlier during the investigation when they found that the clientele of the gang comprised nearly 1,000 customers, including students of city-based schools and colleges, a film producer, senior officials of MNCs and employees of IT firms in Cyberabad.
The department had earlier seized 800 'squares' of LSD, each costing Rs 3,000, and 35 grams of MDMA worth Rs 1.4 lakh.
LSD, sold in tablets or in liquid form, is known to be one of the most potent 'mood-changing' chemicals, while MDMA, commonly known as 'molly' or 'ecstasy', is used primarily as a recreational or party drug.
The two-member SIT was constituted on July 3.
In view of the probe revealing disturbing facts on use of drugs by students, the department had sent advisories to 26 schools and 27 colleges asking their respective managements to sensitise teachers and students against the malady of drug abuse.