Finance Bill, 2015 gets presidential assent today and becomes Finance Act 2015.
Hence, Service tax rate of 14% get approved and will be effective from the date to be notified by a separate notification.
However, today no such notification was issued; hence, rate of service tax shall be increased from 12.36% to 14% only after the date is notified. (expected in next few days)
Till such notification is issued, service tax rate remains 12.36%.