The M-Cat (Mephedrone) is a synthetic drug belonging to the amphetamine and cathinone family. It is an easily available, cheap drug.

Estimates reveal that there are about 30,000 M-Cat users in the city of Mumbai. The bigger portions of these users fall between the 14 to 19 years age group. "Youngsters can afford a few doses of drug every day by simply skipping a snack, because peddlers sell it for as cheap as Rs 15 per dose," said Dr Yusuf Merchant, president of Fort-based Drug Abuse Information Rehabilitation and Research Centre.
Doctors Say…
“Methamphetamine (Crystal Meth) and methylene dioxyamphetamine (MDMA or ecstasy) are banned substances under the Narcotic Drugs and Psychotropic Substances (NDPS) Act, 1985. But the new kid on the block, M-Cat, though belonging to the same family of drugs but with more potent effects, is not included," said Dr Yusuf Merchant, president, Drug Abuse Information Rehabilitation and Research Centre.
The Public Interest Litigation (PIL) wants:
There are three major pleas made in the PIL – Mephedrone should be brought under the NDPS Act; Analogs of all drugs must be brought under this act; Powers should be given to a nodal agency like the NDP so as to temporarily ban the drug.
Source-Medindia