For adding channels, you have to do nothing but the below-mentioned steps. Please note that the steps vary with respect to the Sun Direct packages.
For Broadcaster Bouquet: SMS- ADDON SMC# or CDSN# to 96000 58585* OR 58585*
For A-LA-CARTE: SMS- ALACARTE SMC# or CDSN# to 96000 58585* OR 58585*