law: Trade Marks Act, 1999  
  81. Stamping of piece goods, cotton yarn
  
  thread.- 
  (1) Piece goods, such as are ordinarily sold
  
  by length or by the piece, which have been manufactured, bleached, dyed,
  
  printed or finished in premises which are a factory, as defined in the
  
  Factories Act, 1948 ( 63 of 1948), shall not be removed for sale from the last
  
  such premises in which they underwent any of the said processes without having
  
  conspicuously stamped in international form of Indian numerals on each piece
  
  the length thereof in standard yards, or in standard yards and a fraction of
  
  such a yard, or in standard meters or in standard meters and a fraction of such
  
  a meter, according to the real length of the piece, and, except when the goods
  
  are sold from the factory for export from India, without being conspicuously
  
  marked on each piece with the name of the manufacturer or of the occupier of
  
  the premises in which the piece was finally processed or of the wholesale
  
  purchaser in India of the piece.
  (2) Cotton yarn such as is ordinarily sold in
  
  bundles, and cotton thread, namely, sewing, darning, crochet or handicraft
  
  thread, which have been manufactured, blenched, dyed or finished in any
  
  premises not exempted by the rules made under section 82 shall not be removed
  
  for sale from those premises unless, in accordance with the said rules in the
  
  case of yarn - 
  (a) the bundles are
  
  conspicuously marked with an indication of the weight of yarn in English or the
  
  metric system in each bundles, and
  (b) the count of the
  
  yarn contained in the bundles and in the case of thread each unit is
  
  conspicuously marked with the length or weight of thread in the unit and in such
  
  other manner as may be required by the said rules, and
  (c) except where the 
  
  goods are sold from the premises for export from India, unless each bundle or 
  
  unit is conspicuously marked with the name of the manufacturer or of the 
  
  wholesale purchaser in India of the goods.
  Provided  that the rules made under section 82
  
  shall exempt all premises where the work is done by members of one family with
  
  or without the assistance of not more than ten other employees, and all
  
  premises controlled by a co-operative society where not more than twenty
  
  workers are employed in the premises.