Article 341 of Constitution of India "Scheduled Castes"
(1) The President may with respect to any State [or Union territory], and where it is a State after consultation with the Governor thereof, by public notification, specify the castes, races or tribes or parts of or groups within castes, races or tribes which shall for the purposes of this Constitution be deemed to be Scheduled Castes in relation to that State [or Union territory, as the case may be].
(2) Parliament may by law include in or exclude from the list of Scheduled Castes specified in a notification issued under clause (1) any caste, race or tribe or part of or group within any caste, race or tribe, but save as aforesaid a notification issued under the said clause shall not be varied by any subsequent notification.
Article 342 of Constitution of India "Scheduled Tribes"
(1) The President may with respect to any
State [or Union territory], and where it is a State, after
consultation with the Governor thereof, by public
notification, specify the tribes or tribal communities or
parts of or groups within tribes or tribal communities which
shall for the purposes of this Constitution be deemed to be
Scheduled Tribes in relation to that State or Union
territory, as the case may be.
(2) Parliament may by law include in or exclude from the
list of Scheduled Tribes specified in a notification issued
under clause (1) any tribe or tribal community or part of or
group within any tribe or tribal community, but save as
aforesaid a notification issued under the said clause shall
not be varied by any subsequent notification.