Coronal mass ejections (CMEs) are the most energetic solar events in which large amount of solar plasma materials are ejected from the sun into heliosphere and are widely recognized as being responsible to generate disturbances in solar wind plasma parameters, interplanetary shocks and intense geomagnetic storms in the magnetosphere of the earth. I have studied intense geomagnetic storms (Dst ? - 100nT) observed during the period of 2001-2006, with halo and partial halo coronal mass ejections associated with X-ray solar flares and interplanetary shocks which are interplanetary manifestations of coronal mass ejections. I have found that 77.78% intense geomagnetic storms are associated with halo and partial halo coronal mass ejections. The association rate of intense geomagnetic storms with halo and partial halo coronal mass ejections are found 74.29% and 25.71% respectively. Further I have observed that intense geomagnetic storms which are associated with coronal mass ejections are also associated with X ray solar flares of different categories. The association rate of B-class, C-class, M-class and X-class X-ray solar flares are found 11.43%, 28.57%, 40.00%, and 20.00% respectively. From the study of intense geomagnetic storms with storms in solar wind plasma parameters, I have determined positive co-relation between magnitude of intense geomagnetic storms and peak values and magnitude of associated storm in solar wind plasma parameters with co-relation co-efficient 0.42 between magnitude of intense geomagnetic storms and peak values of associated storms in solar wind plasma velocity, 0.41 between magnitude of intense geomagnetic storms and magnitude of associated storms in solar wind plasma velocity , 0.792 between magnitude of intense geomagnetic storms and peak values of associated storms in interplanetary magnetic field, 0.787 between magnitude of intense geomagnetic storms and magnitude of associated storms in interplanetary magnetic field. Positive co-relation has also been found between magnitude of IMF and magnitude of solar wind velocity with correlation coefficient 0.54 and 0.53 between Maximum IMF and maximum solar wind velocity.