In this Act, unless the context otherwise requires,—
(i) "addict" means a person who has dependence on any narcotic drug or psychotropic substances;
(ii) "Board" means the Central Board of Excise and Customs;
(iii) "cannabis (hemp)" means—
(a) charas, that is, the separated resin, in whatever form, whether crude or purified, obtained from the cannabis plant and also includes concentrated preparation and resin known as hashish oil or liquid hashish;
(b) ganja, that is, the flowering or fruiting tops of the cannabis plant (excluding the seeds and leaves when not accompanied by the tops), by whatever name they may be known or designated; and
(c) any mixture, with or without any neutral material, of any of the above forms of cannabis or any drink prepared therefrom;
(iv) "cannabis plant" means any plant of the genus cannabis;
(v) "coca derivative" means—
(a) crude cocaine, that is, any extract of coca leaf which can be used, directly or indirectly, for the manufacture of cocaine;
(b) ecgonine and all the derivatives of ecgonine from which it can be recovered;
(c) cocaine, that is, methyl ester of benzoyl-ecgonine and its salts; and
(d) all preparations containing more than 0.1 per cent of cocaine;
(vi) "coca leaf" means the leaf of the coca plant;
(vii) "commercial quantity", in relation to narcotic drugs and psychotropic substances, means any quantity greater than the quantity specified by the Central Government by notification in the Official Gazette;
(viia) "controlled substance" means any substance declared by the Central Government under section 9A to be a controlled substance;
(viiia) "illicit traffic", in relation to narcotic drugs and psychotropic substances, means cultivating any coca plant, gathering coca leaves, cultivating opium poppy or cannabis plant, engaging in the production, manufacture, possession, sale, purchase, transportation, warehousing, concealment, use or consumption, or financing of narcotic drugs or psychotropic substances, or harboring persons engaged in any such activities;
(xi) "manufactured drug" means all coca derivatives, medicinal cannabis, opium derivatives, poppy straw concentrate and any other narcotic substance or preparation which the Central Government may declare to be a manufactured drug;
(xiv) "narcotic drug" means coca leaf, cannabis (hemp), opium, poppy straw and includes all manufactured drugs;
(xv) "opium" means the coagulated juice of the opium poppy and any mixture with or without neutral materials;
(xvi) "opium derivative" means medicinal opium, prepared opium, morphine, codeine, thebaine and their respective salts and all preparations containing more than 0.2 per cent of morphine or containing any diacetylmorphine (heroin);
(xvii) "opium poppy" means the plant of the species Papaver somniferum L;
(xviii) "poppy straw" means all parts (except the seeds) of the opium poppy after harvesting;
(xx) "preparation", in relation to a narcotic drug or psychotropic substance, means any one or more such drugs or substances in dosage form or any solution or mixture;
(xxii) "psychotropic substance" means any substance, natural or synthetic, or any natural material or any salt or preparation of such substance or material included in the list of psychotropic substances specified in the Schedule;
(xxiiia) "small quantity", in relation to narcotic drugs and psychotropic substances, means any quantity lesser than the quantity specified by the Central Government by notification in the Official Gazette.
Legal Commentary & Landmark Judgments: Section 2
The statutory interpretation of the NDPS Act hinges upon the precise definitions codified in this section, most notably the foundational bifurcation between small quantity under clause (viia) and commercial quantity under clause (xxiiia). Both thresholds are pegged to specific quantitative limits notified by the Central Government in the Official Gazette. This quantitative demarcation dictates the entire procedural and penal trajectory of a criminal prosecution—governing whether an accused faces summary or lenient punishment of up to one year, or a mandatory minimum sentence of ten to twenty years rigorous imprisonment coupled with the near-insurmountable pre-trial bail embargo under Section 37.
This statutory framework establishes clear operational guidelines, balancing legal compliance with procedural safeguards.
The ruling in Hira Singh settled decades of legal dispute regarding chemical purity versus aggregate weight. Defence arguments attempting to isolate the pure narcotic fraction from cutting agents or neutral binders are impermissible; the total weight of the seizure governs trial jurisdiction and invokes the statutory presumption of commercial trafficking.