The present disclosure discloses an interlocking roof tile comprising two groove extending over length of the interlocking roof tile at both lateral ends that create side walls at the distalmost ends of the interlocking roof tile. The grooves are created on top surface of the interlocking roof tile using a press machine that uses pressure to mold the cement into the interlocking roof tiles. The interlocking roof tile's at bottom surface is flat. The interlocking roof tile further comprises at least one nail opening, provided spatially from each other to mount and secure the interlocking roof tile to the roof. In order to couple a plurality of interlocking roof tiles in series, a first interlocking roof tile is placed coupled to the second roof tile such that side wall of the first interlocking roof tile is engaged with the groove of the second interlocking roof tile.