Manmohan singh has given a real challenge to the left parties.Anyway communists will not withdraw support as they are very effectively building their ground support.It is not a co-incidence that since communists have come into poer with congress,Naxalite momvements has increased manyfold and moaists are gaining ground at many places.After all naxalites,Moaists and communists are one idealogy under different names.