Abstract: Sand is a natural substance which is readily available in nature and it is used as an aggregate in the concrete mixture. But due to its increase in demand there is depletion of river sand and it became a scarce material. This research analyzes the feasibility of M-sand as an aggregate in concrete mix. M-sand means manufactured sand and is being prepared by crushing the rocks. In various percentages the river sand was replaced by M-sand and concrete mixes and sample were prepared. The compressive and flexural strength of these manufactured samples were analyzed with respect to the normal concrete mix.