or mala fide or intended to favour someone or a decision “that no responsible authority acting reasonably and in accordance with relevant law could have reached” as held 6 (2016) 8 SCC 622 23in Jagdish Mandal [Jagdish Mandal v. State of Orissa, (2007) 14 SCC 517] followed in Michigan Rubber [Michigan Rubber (India) Ltd. v. State of Karnataka, (2012) 8 SCC 216]. 48. Therefore, whether a term of NIT is essential or not is a decision taken by the employer which should be respected. Even if the term is essential, the employer has the inherent authority to deviate from it provided the deviation is made applicable to all bidders and potential bidders as held in Ramana Dayaram Shetty [Ramana Dayaram Shetty v. International Airport Authority of India, (1979) 3 SCC 489] . However, if the term is held by the employer to be ancillary or subsidiary, even that decision should be respected. The lawfulness of that decision can be questioned on very limited grounds, as mentioned in the various