CCD photometric observations of three open clusters Berkeley 15 (= OCl 414), Czernik 18 (= OCl 426) and NGC 2401 (= OCl 588), obtained for the first time in UBVRI filters down to V=20mag, are presented here. They are located at distances of 1259, 955 and 3467 parsecs with their respective ages estimated as ~5x10^9^years, ~0.8 to 1x10^9^years and ~1x10^9^years. While OCl 414 and OCl 426 are in the direction of the Auriga - Perseus constellations, OCl 588 is placed in the direction of Ophiuchus constellation in our Galaxy. The clusters studied here are of intermediate and old age category.

Cone search capability for table J/other/BASI/32.295/table3 (Standardised UBVRI photometric data for individual stars in the open cluster Berkeley 15 (OCl 414))

Cone search capability for table J/other/BASI/32.295/table4 (Standardised UBVRI photometric data for individual stars in the open cluster Czernik 18 (OCl 426))

Cone search capability for table J/other/BASI/32.295/table5 (Standardised UBVRI photometric data for individual stars in the open cluster NGC 2401 (OCl 588))