The present invention belongs to the field of pharmaceutical industry and relates to a pharmaceutical composition comprising an intragranulate phase and an extragranulate phase, wherein the pharmaceutically active ingredient (API) 2-({6-[(3R)-3-aminopiperidin-1-yl]-3-methyl-2, 4-dioxo-3, 4-dihydropyrimidin-1(2H)-yl}methyl)benzonitrile or a pharmaceutically acceptable salt thereof, is present in the intragranulate phase, wherein said intragranulate phase is free from microcrystalline cellulose. Further, the present invention relates to a process for preparing the same.