Geomagnetic Storms (Dst ?-75nT) associated with halo coronal mass ejections, observed during the period of 23rd solar cycle (1997-2007) have been studied with X-ray solar flares, radio bursts and interplanetary magnetic field. The observed halo coronal mass ejection associated geomagnetic storms have been divided in three categories , moderate geomagnetic storms, magnitude Dst ?-75nT to ? -100nT, intense geomagnetic storms, magnitude Dst ?-100nT to ?-200nT and severe geomagnetic storms, Dst ?- 200nT .It is observed that most of the halo CME related geomagnetic storms are intense or severe geomagnetic storms .The association rates of moderate, intense and severe geomagnetic storms have been found, moderate 18.52%, intense 48.15% and severe 33.33% respectively. Further it is inferred that all the halo CME related geomagnetic storms are associated with X- ray solar flares of different categories. The association rates of geomagnetic storms with different types of flare are found 09(33.33% ) X class flare, 13( 48.15% )M class flare, ,03(11.11 )% C class flare and 02( 7.41%) B class flare .Most of halo CME related geomagnetic storms are found to be related with type IV and type II radio burst 25(92.59. %) .The association rate of type IV and type II radio burst have been found 15(60) % and 10(40) % respectively. Majority of the halo CME related geomagnetic storms are found to be related with interplanetary shocks 26(96.30%) also .It is also determined that geomagnetic storms are closely related to interplanetary magnetic fields. Positive co-relation have been found between magnitude of geomagnetic storms and magnitude of jump in interplanetary magnetic field with correlation coefficient 0.72 between magnitude of geomagnetic storms and magnitude of interplanetary magnetic field, 0.85 between magnitude of geomagnetic storms and maximum value of southward component of interplanetary magnetic field.