Background – The proper functioning of Agni depends on the functioning of Samana Vayu1as it has prime role in Pachana of Ahara. So, in order to correct Mandagni, Samana Vayu has to be corrected. With this point of view, drugs which are cost effective, easily available will be given in Madhyabhakta Kala2. For that reasonthe present study was designed and carried out to establish the justification and efficacy of the treatment principlethis topic had selected. Aims- The aim of study was to find out the effect of Ausadha sevana kala (Madhyabhakta) in Mandagni by using Haritaki-Sunthi-Saindhava Churna. Material and methods-This is a Open level randomasized control trial study. For this study patients of Mandagni were selected randomly from the O.P.D. and I.P.D. of the Govt. Ayurvedic College and Hospital, Balangir. Observation and Results- During the entire duration of therapy, there was not any adverse/untoward effect or adverse drug reactions observed for both the trial groups. Here, Group A showed better result in overall total parameters. Conclusion- The effect of the medicine, that is, Haritaki – Sunthi – Saindhava churna in Madhyabhakta kala is more significant in reducing the subjective and objective parameters and significant results found in Madhyabhakta kala.