I have performed an experiment in physics lab of Kokrajhar Govt. H. S.&M. P. School on diffraction of light by single slit made of two blades. Two blades are joined length-wise using cellotap with a separation of 1 mm in between. The slit is then placed in position of slide in the Foldscope. Laser(red) is passed through the slit and the pattern is captured in my mobile phone.Suggestion from experts is highly expected from my end.