Abstract:
Here we present a preliminary analysis of a helical eruptive
 prominence at the east limb of the Sun on 21 April 2001. Unusually this
 eruption is associated with a double CME. We have tried to study the
morphology of the event, energy budget of the prominence and associated
 CMEs. Our analysis shows that the prominence and first CME started
 simultaneously from the limb and prominence carries sufficient energy
 to feed both the CMEs. Moreover, it is also concluded that CMEs are
 magnetically driven and internally powered.