The crisis in Delhi`s ruling Congress sparked off by resignation of six ministers deepened on Sunday night with Chief Minister Sheila Diskhit offering to step down if the party high command so desired. Highly-placed Congress sources said Dikshit, struggling to put together a new ministry, made the offer when she met Congress President Sonia Gandhi on Sunday evening after being summoned. Dikshit reportedly told Sonia Gandhi that since the six ministers have resigned I am also ready to do so if you desire. Bureau Report