18.2 The Lord said  Some scholars understand that Sannyasa is complete relinishment of desire-prompted acts. Some other wise men say that the meaning of the term Tyaga, according to the Sastras dealing with release, is relinishment of the fruits not only of all desiderative (Kamya), but also of obligatory and occasional, duties . Here, the problem is, whether the Tyaga taught in the Sastras concern desiderative acts themselves, or fruits of all acts. Sri Krsna has used the terms Sannyasa in one place and Tyaga elsewhere. From this it is understood that Sri Krsna uses the terms Tyaga and Sannyasa as synonyms.

Likewise, the decisive teaching is about Tyaga alone in the statement:  'Hear My decision, O Arjuna, about Tyaga' (18.4). That the terms are synonymously used to denote the same sense, is conclusively established from such passages as:  'But the renunciation (Sannyasa) of obligatory work is not proper. Abandonment (Tyaga) of it through delusion is declared to be Tamasika' (18.7); and 'To those who have not renounced the fruits of actions, threefold are the conseences after death - undesirable, desriable and mixed. But to those who have renounced, none whatsoever' (18.12).