The abstract particularly describes the nature of this invention and the manner in which it is to be performed:— 1. Specific process and apparatus developed The inventor has prepared a novel process to speedily and accurately detect pathogens present in a fluid sample, identify the pathogens and it's count and determine the level of their susceptibility levels to multiple antimicrobial agents and portability of the apparatus for speedy determination of antibiotic susceptibility levels of pre-separated pathogens from a biological sample cultured in a multi-well strip, in any field location 2. Disadvantage and shortcomings in earlier method and benefit of this invention It provides result in a ready to use format in four hours time from the start of the assay as against the waiting period of 48 to 72 hours for a sample cultured and tested in a lab using the conventional clinical microbiology.