We present B, V, R, and I bands linear polarimetric observations of 73 stars in the direction of an open star cluster Casado Alessi 1 (hereafter Alessi 1). We aim to use polarimetry as a tool to investigate properties and distribution of dust grain towards the direction of the cluster. The polarimetric observations were carried out using the ARIES IMaging POLarimeter (AIMPOL) mounted at the 104-cm telescope of ARIES, Nainital (India). Using the Gaia photometric data the age and distance of the cluster are estimated to be 0.8+/-0.1 Gyr and 673+/-98 pc, respectively. A total of 66 stars in 26', the radius of the cluster are identified as members of the cluster using the astrometric approach. Out of 66 members, 15 stars were observed polarimetrically and found to have the same value of polarization. Majority of the stars in the region follow the general law of the polarization for interstellar medium (ISM), indicating that polarization towards the cluster Alessi 1 is dominated by foreground dust grains. The average value of the maximum polarization and the wavelength corresponding to the maximum polarization towards the cluster are found to be 0.83+/-0.03% and 0.59+/-0.04 micron, respectively. Also, it appears that dust grains towards the cluster are aligned possibly due to the galactic magnetic field.