What can consumers do if shopping malls and retail shops are selling goods at pre-GST attached labels?

The Government has directed that shopping centers and retail shops must affix two MRP labels to reflect both pre-GST and post-GST prices. Consumers can report to National Consumer Helpline if they find retailers selling goods with pre-GST affixed label prices. States/UTs can also use the administrative machinery of Controller of Legal Metrology to monitor and resolve such cases.