The rollout of GST is likely to be delayed by two or three months, the government is yet to finalise a date, but its likely to settle for either 1st June or 1st July. Non Consensus of Central and State government over the sharing of powers is major reason that all provision of GST is yet to approve and still in finalization stage.
But Government has to mandatorily implement it before September as after this government will lose power to levy any taxes other than GST because of constitutional ammendment.