law: Trade Marks Act, 1999  
  15. Registration of parts of trade marks and
  
  of trade marks as a series. —
  (1) Where the proprietor of a trade mark
  
  claims to be entitled to be entitled to the exclusive use of any part thereof
  
  separately, he may apply to register the whole and the part as separate trade
  
  marks.
  (2) Each such separate trade mark shall
  
  satisfy all the conditions applying to and have all the incidents of, an
  
  independent trade mark.
  (3) Where a person claiming to be the
  
  proprietor of several trade marks in respect of the same or similar goods or
  
  services or description of goods or description of services, which, while
  
  resembling each other in the material particulars thereof, yet differ in
  
  respect of—
  (a) statement of the
  
  goods or services in relation to which they are respectively used or proposed
  
  to be used; or
  (b) statement of
  
  number, price, quality or names of places; or
  (c) other matter of a
  
  non distinctive character which does not substantially affect the identity of
  
  the trade mark; or
  (d) colour, seeks to
  
  register those trade marks, they may be registered as a series in one
  
  registration.