  Open clusters are host the several identical stars in the similar physical
and chemical environment. They become interesting objects to identify the
variable stars in the lower metallicity domain. In the present paper, the CCD
time series observations of cluster NGC 1960 and DOLIDZE 14 are performed to
search the variable stars within them. A comprehensive study of differential
phototometry and secondary standardization transformation is carried out to
search the stellar pulsation. A total of 18 and 4 short periodic variables
found in the field of NGC 1960 and DOLIDZE 14 respectively. Fast Fourier
transformation techniques are utilized to compute the pulsation. Author also
discovered an exo-planet aorund ID 900 of NGC1960 with periodicity about 99
days.
